2512620 has 144 divisors (see below), whose sum is σ = 8805888. Its totient is φ = 596160.

The previous prime is 2512597. The next prime is 2512637. The reversal of 2512620 is 262152.

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 = 2512593 and 2512602.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 53437 + ... + 53483.

It is an arithmetic number, because the mean of its divisors is an integer number (61152).

2^2512620 is an apocalyptic number.

2512620 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 2512620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4402944).

2512620 is an abundant number, since it is smaller than the sum of its proper divisors (6293268).

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

2512620 is a wasteful number, since it uses less digits than its factorization.

2512620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 68 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2512620 is about 1585.1246007806. The cubic root of 2512620 is about 135.9488706303.

Adding to 2512620 its reverse (262152), we get a palindrome (2774772).

The spelling of 2512620 in words is "two million, five hundred twelve thousand, six hundred twenty".