25396530 has 32 divisors (see below), whose sum is σ = 61084800. Its totient is φ = 6757632.

The previous prime is 25396523. The next prime is 25396543. The reversal of 25396530 is 3569352.

It is a junction number, because it is equal to n+sod(n) for n = 25396491 and 25396500.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24666 + ... + 25674.

It is an arithmetic number, because the mean of its divisors is an integer number (1908900).

Almost surely, 2^25396530 is an apocalyptic number.

25396530 is an abundant number, since it is smaller than the sum of its proper divisors (35688270).

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

25396530 is a wasteful number, since it uses less digits than its factorization.

25396530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1858.

The product of its (nonzero) digits is 24300, while the sum is 33.

The square root of 25396530 is about 5039.4969987093. The cubic root of 25396530 is about 293.9396192350.

The spelling of 25396530 in words is "twenty-five million, three hundred ninety-six thousand, five hundred thirty".