88520506440 has 64 divisors (see below), whose sum is σ = 272738871360. Its totient is φ = 22967481600.

The previous prime is 88520506439. The next prime is 88520506469. The reversal of 88520506440 is 4460502588.

It is a junction number, because it is equal to n+sod(n) for n = 88520506392 and 88520506401.

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, 9964086 + ... + 9972965.

It is an arithmetic number, because the mean of its divisors is an integer number (4261544865).

Almost surely, 2^88520506440 is an apocalyptic number.

It is an amenable number.

88520506440 is an abundant number, since it is smaller than the sum of its proper divisors (184218364920).

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

88520506440 is a wasteful number, since it uses less digits than its factorization.

88520506440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19937102 (or 19937098 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 42.

The spelling of 88520506440 in words is "eighty-eight billion, five hundred twenty million, five hundred six thousand, four hundred forty".