55164251 has 4 divisors (see below), whose sum is σ = 55199904. Its totient is φ = 55128600.

The previous prime is 55164217. The next prime is 55164257. The reversal of 55164251 is 15246155.

It is a happy number.

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 55164251 - 2¹⁴ = 55147867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55164257) 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, 15395 + ... + 18636.

It is an arithmetic number, because the mean of its divisors is an integer number (13799976).

Almost surely, 2^55164251 is an apocalyptic number.

55164251 is a deficient number, since it is larger than the sum of its proper divisors (35653).

55164251 is a wasteful number, since it uses less digits than its factorization.

55164251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35652.

The product of its digits is 6000, while the sum is 29.

The square root of 55164251 is about 7427.2640319299. The cubic root of 55164251 is about 380.6734387858.

The spelling of 55164251 in words is "fifty-five million, one hundred sixty-four thousand, two hundred fifty-one".