87775125 has 16 divisors (see below), whose sum is σ = 146058432. Its totient is φ = 46813200.

The previous prime is 87775111. The next prime is 87775133. The reversal of 87775125 is 52157778.

It is not a de Polignac number, because 87775125 - 2⁹ = 87774613 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116659 + ... + 117408.

It is an arithmetic number, because the mean of its divisors is an integer number (9128652).

Almost surely, 2^87775125 is an apocalyptic number.

It is an amenable number.

87775125 is a deficient number, since it is larger than the sum of its proper divisors (58283307).

87775125 is a wasteful number, since it uses less digits than its factorization.

87775125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234085 (or 234075 counting only the distinct ones).

The product of its digits is 137200, while the sum is 42.

The square root of 87775125 is about 9368.8379749038. The cubic root of 87775125 is about 444.4168180166.

The spelling of 87775125 in words is "eighty-seven million, seven hundred seventy-five thousand, one hundred twenty-five".