87253572 has 48 divisors (see below), whose sum is σ = 234536960. Its totient is φ = 24730272.

The previous prime is 87253549. The next prime is 87253583. The reversal of 87253572 is 27535278.

It is a super-2 number, since 2×87253572² = 15226371653518368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87253572.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6579 + ... + 14757.

Almost surely, 2^87253572 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87253572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117268480).

87253572 is an abundant number, since it is smaller than the sum of its proper divisors (147283388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87253572 is a wasteful number, since it uses less digits than its factorization.

87253572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8320 (or 8318 counting only the distinct ones).

The product of its digits is 117600, while the sum is 39.

The square root of 87253572 is about 9340.9620489541. The cubic root of 87253572 is about 443.5348387054.

The spelling of 87253572 in words is "eighty-seven million, two hundred fifty-three thousand, five hundred seventy-two".