87505515132 has 48 divisors (see below), whose sum is σ = 245629520640. Its totient is φ = 23685702912.

The previous prime is 87505515103. The next prime is 87505515169. The reversal of 87505515132 is 23151550578.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 27412413 + ... + 27415604.

It is an arithmetic number, because the mean of its divisors is an integer number (5117281680).

Almost surely, 2^87505515132 is an apocalyptic number.

It is an amenable number.

87505515132 is an abundant number, since it is smaller than the sum of its proper divisors (158124005508).

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

87505515132 is a wasteful number, since it uses less digits than its factorization.

87505515132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54828050 (or 54828048 counting only the distinct ones).

The product of its (nonzero) digits is 210000, while the sum is 42.

The spelling of 87505515132 in words is "eighty-seven billion, five hundred five million, five hundred fifteen thousand, one hundred thirty-two".