55951784 has 32 divisors (see below), whose sum is σ = 120362880. Its totient is φ = 23886144.

The previous prime is 55951783. The next prime is 55951793. The reversal of 55951784 is 48715955.

It is not an unprimeable number, because it can be changed into a prime (55951781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13709 + ... + 17315.

It is an arithmetic number, because the mean of its divisors is an integer number (3761340).

Almost surely, 2^55951784 is an apocalyptic number.

It is an amenable number.

55951784 is an abundant number, since it is smaller than the sum of its proper divisors (64411096).

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

55951784 is a wasteful number, since it uses less digits than its factorization.

55951784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3897 (or 3893 counting only the distinct ones).

The product of its digits is 252000, while the sum is 44.

The square root of 55951784 is about 7480.0925127969. The cubic root of 55951784 is about 382.4764027763.

The spelling of 55951784 in words is "fifty-five million, nine hundred fifty-one thousand, seven hundred eighty-four".