87725056 has 22 divisors (see below), whose sum is σ = 175366490. Its totient is φ = 43862016.

The previous prime is 87725051. The next prime is 87725063. The reversal of 87725056 is 65052778.

It can be written as a sum of positive squares in only one way, i.e., 74649600 + 13075456 = 8640^2 + 3616^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87725051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41811 + ... + 43858.

Almost surely, 2^87725056 is an apocalyptic number.

It is an amenable number.

87725056 is a deficient number, since it is larger than the sum of its proper divisors (87641434).

87725056 is an equidigital number, since it uses as much as digits as its factorization.

87725056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85689 (or 85671 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 40.

The square root of 87725056 is about 9366.1654907438. The cubic root of 87725056 is about 444.3323000018.

The spelling of 87725056 in words is "eighty-seven million, seven hundred twenty-five thousand, fifty-six".