55123010455 has 4 divisors (see below), whose sum is σ = 66147612552. Its totient is φ = 44098408360.

The previous prime is 55123010431. The next prime is 55123010471. The reversal of 55123010455 is 55401032155.

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

It is not a de Polignac number, because 55123010455 - 2¹¹ = 55123008407 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5512301041 + ... + 5512301050.

It is an arithmetic number, because the mean of its divisors is an integer number (16536903138).

Almost surely, 2^55123010455 is an apocalyptic number.

55123010455 is a deficient number, since it is larger than the sum of its proper divisors (11024602097).

55123010455 is a wasteful number, since it uses less digits than its factorization.

55123010455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11024602096.

The product of its (nonzero) digits is 15000, while the sum is 31.

The spelling of 55123010455 in words is "fifty-five billion, one hundred twenty-three million, ten thousand, four hundred fifty-five".