55918674 has 56 divisors (see below), whose sum is σ = 143751360. Its totient is φ = 15973848.

The previous prime is 55918663. The next prime is 55918679. The reversal of 55918674 is 47681955.

It is not an unprimeable number, because it can be changed into a prime (55918679) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 7467 + ... + 12945.

Almost surely, 2^55918674 is an apocalyptic number.

55918674 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 55918674, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71875680).

55918674 is an abundant number, since it is smaller than the sum of its proper divisors (87832686).

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

55918674 is an equidigital number, since it uses as much as digits as its factorization.

55918674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5506 (or 5491 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 55918674 is about 7477.8789773571. The cubic root of 55918674 is about 382.4009432074.

The spelling of 55918674 in words is "fifty-five million, nine hundred eighteen thousand, six hundred seventy-four".