55052491 has 8 divisors (see below), whose sum is σ = 59721984. Its totient is φ = 50445120.

The previous prime is 55052483. The next prime is 55052533. The reversal of 55052491 is 19425055.

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 55052491 - 2³ = 55052483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55052441) 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, 13675 + ... + 17236.

It is an arithmetic number, because the mean of its divisors is an integer number (7465248).

Almost surely, 2^55052491 is an apocalyptic number.

55052491 is a deficient number, since it is larger than the sum of its proper divisors (4669493).

55052491 is a wasteful number, since it uses less digits than its factorization.

55052491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31061.

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 55052491 is about 7419.7365856208. The cubic root of 55052491 is about 380.4161898982.

The spelling of 55052491 in words is "fifty-five million, fifty-two thousand, four hundred ninety-one".