55133051 has 4 divisors (see below), whose sum is σ = 55219704. Its totient is φ = 55046400.

The previous prime is 55133033. The next prime is 55133059. The reversal of 55133051 is 15033155.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15033155 = 5 ⋅3006631.

It is a cyclic number.

It is not a de Polignac number, because 55133051 - 2²² = 50938747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55133059) 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, 42365 + ... + 43646.

It is an arithmetic number, because the mean of its divisors is an integer number (13804926).

Almost surely, 2^55133051 is an apocalyptic number.

55133051 is a deficient number, since it is larger than the sum of its proper divisors (86653).

55133051 is an equidigital number, since it uses as much as digits as its factorization.

55133051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86652.

The product of its (nonzero) digits is 1125, while the sum is 23.

The square root of 55133051 is about 7425.1633652062. The cubic root of 55133051 is about 380.6016576901.

The spelling of 55133051 in words is "fifty-five million, one hundred thirty-three thousand, fifty-one".