55130352531 has 32 divisors (see below), whose sum is σ = 77428526400. Its totient is φ = 34841210880.

The previous prime is 55130352517. The next prime is 55130352533. The reversal of 55130352531 is 13525303155.

It is a happy number.

55130352531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55130352531 - 2²⁶ = 55063243667 is a prime.

It is a super-2 number, since 2×55130352531² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55130352492 and 55130352501.

It is not an unprimeable number, because it can be changed into a prime (55130352533) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3010555 + ... + 3028811.

It is an arithmetic number, because the mean of its divisors is an integer number (2419641450).

Almost surely, 2^55130352531 is an apocalyptic number.

55130352531 is a deficient number, since it is larger than the sum of its proper divisors (22298173869).

55130352531 is a wasteful number, since it uses less digits than its factorization.

55130352531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18919.

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

Adding to 55130352531 its reverse (13525303155), we get a palindrome (68655655686).

The spelling of 55130352531 in words is "fifty-five billion, one hundred thirty million, three hundred fifty-two thousand, five hundred thirty-one".