55424994 has 16 divisors (see below), whose sum is σ = 111660768. Its totient is φ = 18339872.

The previous prime is 55424987. The next prime is 55425011. The reversal of 55424994 is 49942455.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32892 + ... + 34535.

It is an arithmetic number, because the mean of its divisors is an integer number (6978798).

Almost surely, 2^55424994 is an apocalyptic number.

55424994 is an abundant number, since it is smaller than the sum of its proper divisors (56235774).

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

55424994 is a wasteful number, since it uses less digits than its factorization.

55424994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67569.

The product of its digits is 259200, while the sum is 42.

The square root of 55424994 is about 7444.7964377812. The cubic root of 55424994 is about 381.2722683759.

The spelling of 55424994 in words is "fifty-five million, four hundred twenty-four thousand, nine hundred ninety-four".