25252020 has 96 divisors (see below), whose sum is σ = 79511040. Its totient is φ = 6652800.

The previous prime is 25252013. The next prime is 25252033. The reversal of 25252020 is 2025252.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 25251984 and 25252002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54309 + ... + 54771.

It is an arithmetic number, because the mean of its divisors is an integer number (828240).

Almost surely, 2^25252020 is an apocalyptic number.

25252020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25252020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39755520).

25252020 is an abundant number, since it is smaller than the sum of its proper divisors (54259020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25252020 is a wasteful number, since it uses less digits than its factorization.

25252020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582 (or 574 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 25252020 is about 5025.1388040531. The cubic root of 25252020 is about 293.3810384993.

Adding to 25252020 its reverse (2025252), we get a palindrome (27277272).

The spelling of 25252020 in words is "twenty-five million, two hundred fifty-two thousand, twenty".