55111210051 has 8 divisors (see below), whose sum is σ = 55521511200. Its totient is φ = 54701505600.

The previous prime is 55111210013. The next prime is 55111210061. The reversal of 55111210051 is 15001211155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55111210051 - 2⁹ = 55111209539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55111210061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37095 + ... + 334063.

It is an arithmetic number, because the mean of its divisors is an integer number (6940188900).

Almost surely, 2^55111210051 is an apocalyptic number.

55111210051 is a deficient number, since it is larger than the sum of its proper divisors (410301149).

55111210051 is a wasteful number, since it uses less digits than its factorization.

55111210051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298349.

The product of its (nonzero) digits is 250, while the sum is 22.

The spelling of 55111210051 in words is "fifty-five billion, one hundred eleven million, two hundred ten thousand, fifty-one".