55861974 has 40 divisors (see below), whose sum is σ = 143056848. Its totient is φ = 15960240.

The previous prime is 55861951. The next prime is 55861999. The reversal of 55861974 is 47916855.

55861974 is a `hidden beast` number, since 558 + 6 + 1 + 97 + 4 = 666.

55861974 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 23497 + ... + 25764.

Almost surely, 2^55861974 is an apocalyptic number.

55861974 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

55861974 is an abundant number, since it is smaller than the sum of its proper divisors (87194874).

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

55861974 is a wasteful number, since it uses less digits than its factorization.

55861974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49282 (or 49273 counting only the distinct ones).

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

The square root of 55861974 is about 7474.0868338547. The cubic root of 55861974 is about 382.2716514794.

The spelling of 55861974 in words is "fifty-five million, eight hundred sixty-one thousand, nine hundred seventy-four".