102580520 has 96 divisors (see below), whose sum is σ = 270864000. Its totient is φ = 34860672.

The previous prime is 102580477. The next prime is 102580553. The reversal of 102580520 is 25085201.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 389909 + ... + 390171.

It is an arithmetic number, because the mean of its divisors is an integer number (2821500).

Almost surely, 2^102580520 is an apocalyptic number.

102580520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102580520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135432000).

102580520 is an abundant number, since it is smaller than the sum of its proper divisors (168283480).

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

102580520 is a wasteful number, since it uses less digits than its factorization.

102580520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487 (or 476 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 102580520 is about 10128.2041843557. The cubic root of 102580520 is about 468.1175953061.

The spelling of 102580520 in words is "one hundred two million, five hundred eighty thousand, five hundred twenty".