55303476018 has 64 divisors (see below), whose sum is σ = 126980179200. Its totient is φ = 15729622272.

The previous prime is 55303476001. The next prime is 55303476037. The reversal of 55303476018 is 81067430355.

It is a super-2 number, since 2×55303476018² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 9920680 + ... + 9926252.

It is an arithmetic number, because the mean of its divisors is an integer number (1984065300).

Almost surely, 2^55303476018 is an apocalyptic number.

55303476018 is an abundant number, since it is smaller than the sum of its proper divisors (71676703182).

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

55303476018 is a wasteful number, since it uses less digits than its factorization.

55303476018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6611.

The product of its (nonzero) digits is 302400, while the sum is 42.

The spelling of 55303476018 in words is "fifty-five billion, three hundred three million, four hundred seventy-six thousand, eighteen".