25541232656 has 20 divisors (see below), whose sum is σ = 49720676304. Its totient is φ = 12710090400.

The previous prime is 25541232653. The next prime is 25541232683. The reversal of 25541232656 is 65623214552.

It is not an unprimeable number, because it can be changed into a prime (25541232653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3779390 + ... + 3786141.

Almost surely, 2^25541232656 is an apocalyptic number.

It is an amenable number.

25541232656 is a deficient number, since it is larger than the sum of its proper divisors (24179443648).

25541232656 is a wasteful number, since it uses less digits than its factorization.

25541232656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7565750 (or 7565744 counting only the distinct ones).

The product of its digits is 432000, while the sum is 41.

The spelling of 25541232656 in words is "twenty-five billion, five hundred forty-one million, two hundred thirty-two thousand, six hundred fifty-six".