32557056420 has 48 divisors (see below), whose sum is σ = 104182581888. Its totient is φ = 7441612800.

The previous prime is 32557056403. The next prime is 32557056431. The reversal of 32557056420 is 2465075523.

It is a happy 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, 38757981 + ... + 38758820.

It is an arithmetic number, because the mean of its divisors is an integer number (2170470456).

Almost surely, 2^32557056420 is an apocalyptic number.

32557056420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32557056420 is an abundant number, since it is smaller than the sum of its proper divisors (71625525468).

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

32557056420 is a wasteful number, since it uses less digits than its factorization.

32557056420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77516820 (or 77516818 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 39.

The spelling of 32557056420 in words is "thirty-two billion, five hundred fifty-seven million, fifty-six thousand, four hundred twenty".