2102525 has 12 divisors (see below), whose sum is σ = 2678772. Its totient is φ = 1635840.

The previous prime is 2102519. The next prime is 2102531. The reversal of 2102525 is 5252012.

It is an interprime number because it is at equal distance from previous prime (2102519) and next prime (2102531).

It can be written as a sum of positive squares in 6 ways, for example, as 195364 + 1907161 = 442^2 + 1381^2 .

It is not a de Polignac number, because 2102525 - 2⁶ = 2102461 is a prime.

It is a super-3 number, since 3×2102525³ = 27883337797607859375, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 212 + ... + 2061.

It is an arithmetic number, because the mean of its divisors is an integer number (223231).

2^2102525 is an apocalyptic number.

2102525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2102525 is a deficient number, since it is larger than the sum of its proper divisors (576247).

2102525 is a wasteful number, since it uses less digits than its factorization.

2102525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2320 (or 2315 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 2102525 is about 1450.0086206640. The cubic root of 2102525 is about 128.1092207417.

Adding to 2102525 its reverse (5252012), we get a palindrome (7354537).

It can be divided in two parts, 21025 and 25, that multiplied together give a square (525625 = 725²).

The spelling of 2102525 in words is "two million, one hundred two thousand, five hundred twenty-five".