89929213925 has 12 divisors (see below), whose sum is σ = 111552180516. Its totient is φ = 71917593600.

The previous prime is 89929213867. The next prime is 89929213943. The reversal of 89929213925 is 52931292998.

It is a Cunningham number, because it is equal to 299882²+1.

It can be written as a sum of positive squares in 6 ways, for example, as 1 + 89929213924 = 1^2 + 299882^2 .

It is not a de Polignac number, because 89929213925 - 2²⁶ = 89862105061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent 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, 573116 + ... + 712965.

It is an arithmetic number, because the mean of its divisors is an integer number (9296015043).

Almost surely, 2^89929213925 is an apocalyptic number.

It is an amenable number.

89929213925 is a deficient number, since it is larger than the sum of its proper divisors (21622966591).

89929213925 is a wasteful number, since it uses less digits than its factorization.

89929213925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288888 (or 1288883 counting only the distinct ones).

The product of its digits is 6298560, while the sum is 59.

The spelling of 89929213925 in words is "eighty-nine billion, nine hundred twenty-nine million, two hundred thirteen thousand, nine hundred twenty-five".