57013121885 has 4 divisors (see below), whose sum is σ = 68415746268. Its totient is φ = 45610497504.

The previous prime is 57013121821. The next prime is 57013121899. The reversal of 57013121885 is 58812131075.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13360123396 + 43652998489 = 115586^2 + 208933^2 .

It is a cyclic number.

It is not a de Polignac number, because 57013121885 - 2⁶ = 57013121821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5701312184 + ... + 5701312193.

It is an arithmetic number, because the mean of its divisors is an integer number (17103936567).

Almost surely, 2^57013121885 is an apocalyptic number.

It is an amenable number.

57013121885 is a deficient number, since it is larger than the sum of its proper divisors (11402624383).

57013121885 is a wasteful number, since it uses less digits than its factorization.

57013121885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11402624382.

The product of its (nonzero) digits is 67200, while the sum is 41.

The spelling of 57013121885 in words is "fifty-seven billion, thirteen million, one hundred twenty-one thousand, eight hundred eighty-five".