57031361617506 has 32 divisors (see below), whose sum is σ = 114651269849088. Its totient is φ = 18912477435600.

The previous prime is 57031361617459. The next prime is 57031361617507. The reversal of 57031361617506 is 60571616313075.

It is not an unprimeable number, because it can be changed into a prime (57031361617507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12342720 + ... + 16321931.

It is an arithmetic number, because the mean of its divisors is an integer number (3582852182784).

Almost surely, 2^{57031361617506} is an apocalyptic number.

57031361617506 is an abundant number, since it is smaller than the sum of its proper divisors (57619908231582).

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

57031361617506 is a wasteful number, since it uses less digits than its factorization.

57031361617506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28666366.

The product of its (nonzero) digits is 2381400, while the sum is 51.

The spelling of 57031361617506 in words is "fifty-seven trillion, thirty-one billion, three hundred sixty-one million, six hundred seventeen thousand, five hundred six".