57623025781 has 32 divisors (see below), whose sum is σ = 63874863360. Its totient is φ = 51794502144.

The previous prime is 57623025769. The next prime is 57623025797. The reversal of 57623025781 is 18752032675.

It is a cyclic number.

It is not a de Polignac number, because 57623025781 - 2¹⁵ = 57622993013 is a prime.

It is a super-2 number, since 2×57623025781² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57623026781) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 8400105 + ... + 8406961.

It is an arithmetic number, because the mean of its divisors is an integer number (1996089480).

Almost surely, 2^57623025781 is an apocalyptic number.

It is an amenable number.

57623025781 is a deficient number, since it is larger than the sum of its proper divisors (6251837579).

57623025781 is a wasteful number, since it uses less digits than its factorization.

57623025781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7245.

The product of its (nonzero) digits is 705600, while the sum is 46.

The spelling of 57623025781 in words is "fifty-seven billion, six hundred twenty-three million, twenty-five thousand, seven hundred eighty-one".