53531516161731 has 16 divisors (see below), whose sum is σ = 72894287983104. Its totient is φ = 34928217318624.

The previous prime is 53531516161727. The next prime is 53531516161757. The reversal of 53531516161731 is 13716161513535.

It is not a de Polignac number, because 53531516161731 - 2² = 53531516161727 is a prime.

It is a super-2 number, since 2×53531516161731² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53531516166731) 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, 39922080 + ... + 41241186.

It is an arithmetic number, because the mean of its divisors is an integer number (4555892998944).

Almost surely, 2^{53531516161731} is an apocalyptic number.

53531516161731 is a deficient number, since it is larger than the sum of its proper divisors (19362771821373).

53531516161731 is a wasteful number, since it uses less digits than its factorization.

53531516161731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606970.

The product of its digits is 850500, while the sum is 48.

The spelling of 53531516161731 in words is "fifty-three trillion, five hundred thirty-one billion, five hundred sixteen million, one hundred sixty-one thousand, seven hundred thirty-one".