88502515240 has 16 divisors (see below), whose sum is σ = 199130659380. Its totient is φ = 35401006080.

The previous prime is 88502515217. The next prime is 88502515243. The reversal of 88502515240 is 4251520588.

It can be written as a sum of positive squares in 2 ways, for example, as 77109514596 + 11393000644 = 277686^2 + 106738^2 .

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 2212562881 = 88502515240 / (8 + 8 + 5 + 0 + 2 + 5 + 1 + 5 + 2 + 4 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 88502515193 and 88502515202.

It is not an unprimeable number, because it can be changed into a prime (88502515243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1106281401 + ... + 1106281480.

Almost surely, 2^88502515240 is an apocalyptic number.

It is an amenable number.

88502515240 is an abundant number, since it is smaller than the sum of its proper divisors (110628144140).

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

88502515240 is a wasteful number, since it uses less digits than its factorization.

88502515240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2212562892 (or 2212562888 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 40.

The spelling of 88502515240 in words is "eighty-eight billion, five hundred two million, five hundred fifteen thousand, two hundred forty".