25542662013 has 64 divisors (see below), whose sum is σ = 41958604800. Its totient is φ = 15227352000.

The previous prime is 25542662011. The next prime is 25542662017. The reversal of 25542662013 is 31026624552.

25542662013 is a `hidden beast` number, since 2 + 5 + 5 + 4 + 26 + 620 + 1 + 3 = 666.

It is not a de Polignac number, because 25542662013 - 2¹ = 25542662011 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25542662011) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11406948 + ... + 11409186.

It is an arithmetic number, because the mean of its divisors is an integer number (655603200).

Almost surely, 2^25542662013 is an apocalyptic number.

It is an amenable number.

25542662013 is a deficient number, since it is larger than the sum of its proper divisors (16415942787).

25542662013 is a wasteful number, since it uses less digits than its factorization.

25542662013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2871 (or 2865 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 25542662013 in words is "twenty-five billion, five hundred forty-two million, six hundred sixty-two thousand, thirteen".