87525812 has 24 divisors (see below), whose sum is σ = 170984352. Its totient is φ = 38858400.

The previous prime is 87525811. The next prime is 87525817. The reversal of 87525812 is 21852578.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87525811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21239 + ... + 25022.

It is an arithmetic number, because the mean of its divisors is an integer number (7124348).

Almost surely, 2^87525812 is an apocalyptic number.

It is an amenable number.

87525812 is a deficient number, since it is larger than the sum of its proper divisors (83458540).

87525812 is a wasteful number, since it uses less digits than its factorization.

87525812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46319 (or 46317 counting only the distinct ones).

The product of its digits is 44800, while the sum is 38.

The square root of 87525812 is about 9355.5230746335. The cubic root of 87525812 is about 443.9956510139.

The spelling of 87525812 in words is "eighty-seven million, five hundred twenty-five thousand, eight hundred twelve".