55887297 has 8 divisors (see below), whose sum is σ = 74559744. Its totient is φ = 37236528.

The previous prime is 55887287. The next prime is 55887311. The reversal of 55887297 is 79278855.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55887297 - 2⁶ = 55887233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55887287) 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, 2083 + ... + 10775.

It is an arithmetic number, because the mean of its divisors is an integer number (9319968).

Almost surely, 2^55887297 is an apocalyptic number.

It is an amenable number.

55887297 is a deficient number, since it is larger than the sum of its proper divisors (18672447).

55887297 is a wasteful number, since it uses less digits than its factorization.

55887297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10839.

The product of its digits is 1411200, while the sum is 51.

The square root of 55887297 is about 7475.7806950177. The cubic root of 55887297 is about 382.3294057498.

The spelling of 55887297 in words is "fifty-five million, eight hundred eighty-seven thousand, two hundred ninety-seven".