55853572731 has 8 divisors (see below), whose sum is σ = 81241560384. Its totient is φ = 33850650120.

The previous prime is 55853572711. The next prime is 55853572759. The reversal of 55853572731 is 13727535855.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55853572731 - 2⁶ = 55853572667 is a prime.

It is a super-2 number, since 2×55853572731² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55853572711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 846266221 + ... + 846266286.

It is an arithmetic number, because the mean of its divisors is an integer number (10155195048).

Almost surely, 2^55853572731 is an apocalyptic number.

55853572731 is a deficient number, since it is larger than the sum of its proper divisors (25387987653).

55853572731 is a wasteful number, since it uses less digits than its factorization.

55853572731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1692532521.

The product of its digits is 4410000, while the sum is 51.

The spelling of 55853572731 in words is "fifty-five billion, eight hundred fifty-three million, five hundred seventy-two thousand, seven hundred thirty-one".