25541967136 has 48 divisors (see below), whose sum is σ = 58278890880. Its totient is φ = 10792373760.

The previous prime is 25541967103. The next prime is 25541967151. The reversal of 25541967136 is 63176914552.

It is a self number, because there is not a number n which added to its sum of digits gives 25541967136.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 787101 + ... + 818908.

It is an arithmetic number, because the mean of its divisors is an integer number (1214143560).

Almost surely, 2^25541967136 is an apocalyptic number.

It is an amenable number.

25541967136 is an abundant number, since it is smaller than the sum of its proper divisors (32736923744).

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

25541967136 is a wasteful number, since it uses less digits than its factorization.

25541967136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606097 (or 1606089 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 49.

The spelling of 25541967136 in words is "twenty-five billion, five hundred forty-one million, nine hundred sixty-seven thousand, one hundred thirty-six".