55047992 has 16 divisors (see below), whose sum is σ = 103295400. Its totient is φ = 27502560.

The previous prime is 55047991. The next prime is 55048067. The reversal of 55047992 is 29974055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55047991) 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, 15434 + ... + 18662.

Almost surely, 2^55047992 is an apocalyptic number.

It is an amenable number.

55047992 is a deficient number, since it is larger than the sum of its proper divisors (48247408).

55047992 is a wasteful number, since it uses less digits than its factorization.

55047992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5366 (or 5362 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 55047992 is about 7419.4334015476. The cubic root of 55047992 is about 380.4058268245.

The spelling of 55047992 in words is "fifty-five million, forty-seven thousand, nine hundred ninety-two".