55200013530 has 64 divisors (see below), whose sum is σ = 139496653440. Its totient is φ = 13940868096.

The previous prime is 55200013481. The next prime is 55200013553. The reversal of 55200013530 is 3531000255.

It is a self number, because there is not a number n which added to its sum of digits gives 55200013530.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2034534 + ... + 2061486.

It is an arithmetic number, because the mean of its divisors is an integer number (2179635210).

Almost surely, 2^55200013530 is an apocalyptic number.

55200013530 is an abundant number, since it is smaller than the sum of its proper divisors (84296639910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55200013530 is a wasteful number, since it uses less digits than its factorization.

55200013530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30575.

The product of its (nonzero) digits is 2250, while the sum is 24.

Adding to 55200013530 its reverse (3531000255), we get a palindrome (58731013785).

The spelling of 55200013530 in words is "fifty-five billion, two hundred million, thirteen thousand, five hundred thirty".