53231550531 has 16 divisors (see below), whose sum is σ = 71107441920. Its totient is φ = 35421740640.

The previous prime is 53231550529. The next prime is 53231550557. The reversal of 53231550531 is 13505513235.

It is a happy number.

It is not a de Polignac number, because 53231550531 - 2¹ = 53231550529 is a prime.

It is a super-2 number, since 2×53231550531² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53231550492 and 53231550501.

It is not an unprimeable number, because it can be changed into a prime (53231551531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4170946 + ... + 4183688.

It is an arithmetic number, because the mean of its divisors is an integer number (4444215120).

Almost surely, 2^53231550531 is an apocalyptic number.

53231550531 is a deficient number, since it is larger than the sum of its proper divisors (17875891389).

53231550531 is a wasteful number, since it uses less digits than its factorization.

53231550531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15226.

The product of its (nonzero) digits is 33750, while the sum is 33.

The spelling of 53231550531 in words is "fifty-three billion, two hundred thirty-one million, five hundred fifty thousand, five hundred thirty-one".