55564513211051 has 4 divisors (see below), whose sum is σ = 59838706534992. Its totient is φ = 51290319887112.

The previous prime is 55564513211047. The next prime is 55564513211069. The reversal of 55564513211051 is 15011231546555.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55564513211051 - 2² = 55564513211047 is a prime.

It is a super-2 number, since 2×55564513211051² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55564513210993 and 55564513211011.

It is not an unprimeable number, because it can be changed into a prime (55564513211551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2137096661951 + ... + 2137096661976.

It is an arithmetic number, because the mean of its divisors is an integer number (14959676633748).

Almost surely, 2^{55564513211051} is an apocalyptic number.

55564513211051 is a deficient number, since it is larger than the sum of its proper divisors (4274193323941).

55564513211051 is a wasteful number, since it uses less digits than its factorization.

55564513211051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4274193323940.

The product of its (nonzero) digits is 450000, while the sum is 44.

The spelling of 55564513211051 in words is "fifty-five trillion, five hundred sixty-four billion, five hundred thirteen million, two hundred eleven thousand, fifty-one".