55316757 has 4 divisors (see below), whose sum is σ = 73755680. Its totient is φ = 36877836.

The previous prime is 55316743. The next prime is 55316783. The reversal of 55316757 is 75761355.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 55316757 - 2⁶ = 55316693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55316707) 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, 9219457 + ... + 9219462.

It is an arithmetic number, because the mean of its divisors is an integer number (18438920).

Almost surely, 2^55316757 is an apocalyptic number.

It is an amenable number.

55316757 is a deficient number, since it is larger than the sum of its proper divisors (18438923).

55316757 is a wasteful number, since it uses less digits than its factorization.

55316757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18438922.

The product of its digits is 110250, while the sum is 39.

The square root of 55316757 is about 7437.5235797946. The cubic root of 55316757 is about 381.0239167687.

The spelling of 55316757 in words is "fifty-five million, three hundred sixteen thousand, seven hundred fifty-seven".