25620036 has 24 divisors (see below), whose sum is σ = 64378944. Its totient is φ = 7883040.

The previous prime is 25620017. The next prime is 25620059. The reversal of 25620036 is 63002652.

It is a junction number, because it is equal to n+sod(n) for n = 25619988 and 25620015.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81960 + ... + 82271.

It is an arithmetic number, because the mean of its divisors is an integer number (2682456).

Almost surely, 2^25620036 is an apocalyptic number.

25620036 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

25620036 is an abundant number, since it is smaller than the sum of its proper divisors (38758908).

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

25620036 is a wasteful number, since it uses less digits than its factorization.

25620036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164251 (or 164249 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 25620036 is about 5061.6238501098. The cubic root of 25620036 is about 294.7993886482.

Adding to 25620036 its reverse (63002652), we get a palindrome (88622688).

The spelling of 25620036 in words is "twenty-five million, six hundred twenty thousand, thirty-six".