55677313 has 4 divisors (see below), whose sum is σ = 56348208. Its totient is φ = 55006420.

The previous prime is 55677311. The next prime is 55677317. The reversal of 55677313 is 31377655.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31377655 = 5 ⋅6275531.

It is a cyclic number.

It is not a de Polignac number, because 55677313 - 2¹ = 55677311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55677311) 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, 335323 + ... + 335488.

It is an arithmetic number, because the mean of its divisors is an integer number (14087052).

Almost surely, 2^55677313 is an apocalyptic number.

It is an amenable number.

55677313 is a deficient number, since it is larger than the sum of its proper divisors (670895).

55677313 is an equidigital number, since it uses as much as digits as its factorization.

55677313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670894.

The product of its digits is 66150, while the sum is 37.

The square root of 55677313 is about 7461.7231924000. The cubic root of 55677313 is about 381.8499657507.

It can be divided in two parts, 5567 and 7313, that added together give a triangular number (12880 = T₁₆₀).

The spelling of 55677313 in words is "fifty-five million, six hundred seventy-seven thousand, three hundred thirteen".