25890012575 has 24 divisors (see below), whose sum is σ = 36695886432. Its totient is φ = 17750229120.

The previous prime is 25890012571. The next prime is 25890012581. The reversal of 25890012575 is 57521009852.

It is not a de Polignac number, because 25890012575 - 2² = 25890012571 is a prime.

It is a super-2 number, since 2×25890012575² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25890012571) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 2023097 + ... + 2035853.

It is an arithmetic number, because the mean of its divisors is an integer number (1528995268).

Almost surely, 2^25890012575 is an apocalyptic number.

25890012575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25890012575 is a deficient number, since it is larger than the sum of its proper divisors (10805873857).

25890012575 is a wasteful number, since it uses less digits than its factorization.

25890012575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24371 (or 24366 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 44.

The spelling of 25890012575 in words is "twenty-five billion, eight hundred ninety million, twelve thousand, five hundred seventy-five".