57720052052052 has 72 divisors (see below), whose sum is σ = 151620401598624. Its totient is φ = 16987841382336.

The previous prime is 57720052052017. The next prime is 57720052052057. The reversal of 57720052052052 is 25025025002775.

It is a super-2 number, since 2×57720052052052² (a number of 28 digits) contains 22 as substring.

57720052052052 is a modest number, since divided by 52052052 gives 57720 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 57720052051995 and 57720052052013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57720052052057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 349634238 + ... + 349799285.

It is an arithmetic number, because the mean of its divisors is an integer number (2105838911092).

Almost surely, 2^{57720052052052} is an apocalyptic number.

57720052052052 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

57720052052052 is an abundant number, since it is smaller than the sum of its proper divisors (93900349546572).

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

57720052052052 is a wasteful number, since it uses less digits than its factorization.

57720052052052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699433589 (or 699433564 counting only the distinct ones).

The product of its (nonzero) digits is 490000, while the sum is 42.

The spelling of 57720052052052 in words is "fifty-seven trillion, seven hundred twenty billion, fifty-two million, fifty-two thousand, fifty-two".