55463032531 has 16 divisors (see below), whose sum is σ = 59475769920. Its totient is φ = 51592020480.

The previous prime is 55463032529. The next prime is 55463032543. The reversal of 55463032531 is 13523036455.

It is a cyclic number.

It is not a de Polignac number, because 55463032531 - 2¹ = 55463032529 is a prime.

It is a super-2 number, since 2×55463032531² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55463032571) 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, 201205 + ... + 389113.

It is an arithmetic number, because the mean of its divisors is an integer number (3717235620).

Almost surely, 2^55463032531 is an apocalyptic number.

55463032531 is a deficient number, since it is larger than the sum of its proper divisors (4012737389).

55463032531 is a wasteful number, since it uses less digits than its factorization.

55463032531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188286.

The product of its (nonzero) digits is 162000, while the sum is 37.

Adding to 55463032531 its reverse (13523036455), we get a palindrome (68986068986).

The spelling of 55463032531 in words is "fifty-five billion, four hundred sixty-three million, thirty-two thousand, five hundred thirty-one".