57012155510500 has 72 divisors (see below), whose sum is σ = 132269779310760. Its totient is φ = 21463399667200.

The previous prime is 57012155510467. The next prime is 57012155510539. The reversal of 57012155510500 is 501555121075.

It can be written as a sum of positive squares in 12 ways, for example, as 20645973038656 + 36366182471844 = 4543784^2 + 6030438^2 .

It is a super-2 number, since 2×57012155510500² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 57012155510500.

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, 197129395 + ... + 197418394.

It is an arithmetic number, because the mean of its divisors is an integer number (1837080268205).

Almost surely, 2^{57012155510500} is an apocalyptic number.

57012155510500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

57012155510500 is an abundant number, since it is smaller than the sum of its proper divisors (75257623800260).

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

57012155510500 is a wasteful number, since it uses less digits than its factorization.

57012155510500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394547842 (or 394547813 counting only the distinct ones).

The product of its (nonzero) digits is 43750, while the sum is 37.

The spelling of 57012155510500 in words is "fifty-seven trillion, twelve billion, one hundred fifty-five million, five hundred ten thousand, five hundred".