25305932256 has 72 divisors (see below), whose sum is σ = 73016013672. Its totient is φ = 7668460800.

The previous prime is 25305932221. The next prime is 25305932269. The reversal of 25305932256 is 65223950352.

It is a super-2 number, since 2×25305932256² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1077655 + ... + 1100886.

It is an arithmetic number, because the mean of its divisors is an integer number (1014111301).

Almost surely, 2^25305932256 is an apocalyptic number.

It is an amenable number.

25305932256 is an abundant number, since it is smaller than the sum of its proper divisors (47710081416).

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

25305932256 is a wasteful number, since it uses less digits than its factorization.

25305932256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2178576 (or 2178557 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 42.

The spelling of 25305932256 in words is "twenty-five billion, three hundred five million, nine hundred thirty-two thousand, two hundred fifty-six".