25562115131 has 32 divisors (see below), whose sum is σ = 30041520000. Its totient is φ = 21741060096.

The previous prime is 25562115121. The next prime is 25562115133. The reversal of 25562115131 is 13151126552.

It is a de Polignac number, because none of the positive numbers 2^k-25562115131 is a prime.

It is a super-2 number, since 2×25562115131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25562115133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36053405 + ... + 36054113.

It is an arithmetic number, because the mean of its divisors is an integer number (938797500).

Almost surely, 2^25562115131 is an apocalyptic number.

25562115131 is a deficient number, since it is larger than the sum of its proper divisors (4479404869).

25562115131 is an equidigital number, since it uses as much as digits as its factorization.

25562115131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396 (or 1382 counting only the distinct ones).

The product of its digits is 9000, while the sum is 32.

The spelling of 25562115131 in words is "twenty-five billion, five hundred sixty-two million, one hundred fifteen thousand, one hundred thirty-one".