55636300251 has 64 divisors (see below), whose sum is σ = 101180800000. Its totient is φ = 30118804128.

The previous prime is 55636300211. The next prime is 55636300283. The reversal of 55636300251 is 15200363655.

It is not a de Polignac number, because 55636300251 - 2¹⁵ = 55636267483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55636300211) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17865 + ... + 334053.

It is an arithmetic number, because the mean of its divisors is an integer number (1580950000).

Almost surely, 2^55636300251 is an apocalyptic number.

55636300251 is a deficient number, since it is larger than the sum of its proper divisors (45544499749).

55636300251 is a wasteful number, since it uses less digits than its factorization.

55636300251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316238 (or 316218 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

The spelling of 55636300251 in words is "fifty-five billion, six hundred thirty-six million, three hundred thousand, two hundred fifty-one".