57215345532 has 12 divisors (see below), whose sum is σ = 133502472936. Its totient is φ = 19071781840.

The previous prime is 57215345497. The next prime is 57215345557. The reversal of 57215345532 is 23554351275.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2383972719 + ... + 2383972742.

It is an arithmetic number, because the mean of its divisors is an integer number (11125206078).

Almost surely, 2^57215345532 is an apocalyptic number.

It is an amenable number.

57215345532 is an abundant number, since it is smaller than the sum of its proper divisors (76287127404).

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

57215345532 is a wasteful number, since it uses less digits than its factorization.

57215345532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4767945468 (or 4767945466 counting only the distinct ones).

The product of its digits is 630000, while the sum is 42.

The spelling of 57215345532 in words is "fifty-seven billion, two hundred fifteen million, three hundred forty-five thousand, five hundred thirty-two".