900111712025 has 12 divisors (see below), whose sum is σ = 1131428094012. Its totient is φ = 710225130240.

The previous prime is 900111712009. The next prime is 900111712099. The reversal of 900111712025 is 520217111009.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 198129143689 + 701982568336 = 445117^2 + 837844^2 .

It is not a de Polignac number, because 900111712025 - 2⁴ = 900111712009 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 246604124 + ... + 246607773.

It is an arithmetic number, because the mean of its divisors is an integer number (94285674501).

Almost surely, 2^900111712025 is an apocalyptic number.

It is an amenable number.

900111712025 is a deficient number, since it is larger than the sum of its proper divisors (231316381987).

900111712025 is a wasteful number, since it uses less digits than its factorization.

900111712025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493211980 (or 493211975 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 29.

The spelling of 900111712025 in words is "nine hundred billion, one hundred eleven million, seven hundred twelve thousand, twenty-five".