55551316 has 12 divisors (see below), whose sum is σ = 97308820. Its totient is φ = 27748800.

The previous prime is 55551289. The next prime is 55551329. The reversal of 55551316 is 61315555.

It can be written as a sum of positive squares in 2 ways, for example, as 11195716 + 44355600 = 3346^2 + 6660^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1635 + ... + 10666.

Almost surely, 2^55551316 is an apocalyptic number.

It is an amenable number.

55551316 is a deficient number, since it is larger than the sum of its proper divisors (41757504).

55551316 is a wasteful number, since it uses less digits than its factorization.

55551316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13434 (or 13432 counting only the distinct ones).

The product of its digits is 11250, while the sum is 31.

The square root of 55551316 is about 7453.2755215408. The cubic root of 55551316 is about 381.5617077783.

The spelling of 55551316 in words is "fifty-five million, five hundred fifty-one thousand, three hundred sixteen".