55931858 has 8 divisors (see below), whose sum is σ = 88313520. Its totient is φ = 26494020.

The previous prime is 55931857. The next prime is 55931861. The reversal of 55931858 is 85813955.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (55931857) 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, 735908 + ... + 735983.

It is an arithmetic number, because the mean of its divisors is an integer number (11039190).

Almost surely, 2^55931858 is an apocalyptic number.

55931858 is a deficient number, since it is larger than the sum of its proper divisors (32381662).

55931858 is a wasteful number, since it uses less digits than its factorization.

55931858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471912.

The product of its digits is 216000, while the sum is 44.

The square root of 55931858 is about 7478.7604587926. The cubic root of 55931858 is about 382.4309938596.

The spelling of 55931858 in words is "fifty-five million, nine hundred thirty-one thousand, eight hundred fifty-eight".