55493874 has 12 divisors (see below), whose sum is σ = 120236766. Its totient is φ = 18497952.

The previous prime is 55493873. The next prime is 55493881. The reversal of 55493874 is 47839455.

55493874 is a `hidden beast` number, since 5 + 549 + 38 + 74 = 666.

It can be written as a sum of positive squares in only one way, i.e., 34398225 + 21095649 = 5865^2 + 4593^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55493873) 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, 1541479 + ... + 1541514.

Almost surely, 2^55493874 is an apocalyptic number.

55493874 is an abundant number, since it is smaller than the sum of its proper divisors (64742892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55493874 is a wasteful number, since it uses less digits than its factorization.

55493874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3083001 (or 3082998 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 55493874 is about 7449.4210513301. The cubic root of 55493874 is about 381.4301463795.

The spelling of 55493874 in words is "fifty-five million, four hundred ninety-three thousand, eight hundred seventy-four".