87556425 has 24 divisors (see below), whose sum is σ = 157921440. Its totient is φ = 42451200.

The previous prime is 87556421. The next prime is 87556457. The reversal of 87556425 is 52465578.

It is not a de Polignac number, because 87556425 - 2² = 87556421 is a prime.

It is a super-2 number, since 2×87556425² = 15332255117561250, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (87556421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52240 + ... + 53889.

It is an arithmetic number, because the mean of its divisors is an integer number (6580060).

Almost surely, 2^87556425 is an apocalyptic number.

It is an amenable number.

87556425 is a deficient number, since it is larger than the sum of its proper divisors (70365015).

87556425 is a wasteful number, since it uses less digits than its factorization.

87556425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106153 (or 106148 counting only the distinct ones).

The product of its digits is 336000, while the sum is 42.

The square root of 87556425 is about 9357.1590239773. The cubic root of 87556425 is about 444.0474089057.

The spelling of 87556425 in words is "eighty-seven million, five hundred fifty-six thousand, four hundred twenty-five".