55023543531 has 24 divisors (see below), whose sum is σ = 86732405760. Its totient is φ = 33336586800.

The previous prime is 55023543521. The next prime is 55023543587. The reversal of 55023543531 is 13534532055.

55023543531 is a `hidden beast` number, since 5 + 50 + 2 + 35 + 43 + 531 = 666.

It is not a de Polignac number, because 55023543531 - 2¹¹ = 55023541483 is a prime.

It is a super-2 number, since 2×55023543531² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55023543511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 214566 + ... + 395076.

It is an arithmetic number, because the mean of its divisors is an integer number (3613850240).

Almost surely, 2^55023543531 is an apocalyptic number.

55023543531 is a deficient number, since it is larger than the sum of its proper divisors (31708862229).

55023543531 is a wasteful number, since it uses less digits than its factorization.

55023543531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183607 (or 183604 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 36.

The spelling of 55023543531 in words is "fifty-five billion, twenty-three million, five hundred forty-three thousand, five hundred thirty-one".