55718451 has 6 divisors (see below), whose sum is σ = 80482220. Its totient is φ = 37145628.

The previous prime is 55718447. The next prime is 55718471. The reversal of 55718451 is 15481755.

55718451 is a `hidden beast` number, since 5 + 571 + 84 + 5 + 1 = 666.

It is not a de Polignac number, because 55718451 - 2² = 55718447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55718471) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3095461 + ... + 3095478.

Almost surely, 2^55718451 is an apocalyptic number.

55718451 is a deficient number, since it is larger than the sum of its proper divisors (24763769).

55718451 is a wasteful number, since it uses less digits than its factorization.

55718451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6190945 (or 6190942 counting only the distinct ones).

The product of its digits is 28000, while the sum is 36.

The square root of 55718451 is about 7464.4792852549. The cubic root of 55718451 is about 381.9439877488.

It can be divided in two parts, 55718 and 451, that added together give a square (56169 = 237²).

The spelling of 55718451 in words is "fifty-five million, seven hundred eighteen thousand, four hundred fifty-one".