55993574 has 24 divisors (see below), whose sum is σ = 105221088. Its totient is φ = 22150800.

The previous prime is 55993571. The next prime is 55993601. The reversal of 55993574 is 47539955.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55993571) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20702 + ... + 23249.

It is an arithmetic number, because the mean of its divisors is an integer number (4384212).

Almost surely, 2^55993574 is an apocalyptic number.

55993574 is a deficient number, since it is larger than the sum of its proper divisors (49227514).

55993574 is a wasteful number, since it uses less digits than its factorization.

55993574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43980 (or 43973 counting only the distinct ones).

The product of its digits is 850500, while the sum is 47.

The square root of 55993574 is about 7482.8854060449. The cubic root of 55993574 is about 382.5716020711.

The spelling of 55993574 in words is "fifty-five million, nine hundred ninety-three thousand, five hundred seventy-four".