55382445531 has 48 divisors (see below), whose sum is σ = 94409635840. Its totient is φ = 30614734080.

The previous prime is 55382445527. The next prime is 55382445553. The reversal of 55382445531 is 13554428355.

It is a happy number.

55382445531 is a `hidden beast` number, since 5 + 53 + 8 + 2 + 44 + 553 + 1 = 666.

It is not a de Polignac number, because 55382445531 - 2² = 55382445527 is a prime.

It is a super-2 number, since 2×55382445531² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55382445331) 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 47 ways as a sum of consecutive naturals, for example, 10217340 + ... + 10222758.

Almost surely, 2^55382445531 is an apocalyptic number.

55382445531 is a deficient number, since it is larger than the sum of its proper divisors (39027190309).

55382445531 is a wasteful number, since it uses less digits than its factorization.

55382445531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10696 (or 10693 counting only the distinct ones).

The product of its digits is 1440000, while the sum is 45.

The spelling of 55382445531 in words is "fifty-five billion, three hundred eighty-two million, four hundred forty-five thousand, five hundred thirty-one".