55919488 has 16 divisors (see below), whose sum is σ = 111402360. Its totient is φ = 27959680.

The previous prime is 55919483. The next prime is 55919491. The reversal of 55919488 is 88491955.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55919483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 218308 + ... + 218563.

Almost surely, 2^55919488 is an apocalyptic number.

It is an amenable number.

55919488 is a deficient number, since it is larger than the sum of its proper divisors (55482872).

55919488 is an equidigital number, since it uses as much as digits as its factorization.

55919488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436885 (or 436873 counting only the distinct ones).

The product of its digits is 518400, while the sum is 49.

The square root of 55919488 is about 7477.9334043571. The cubic root of 55919488 is about 382.4027987167.

The spelling of 55919488 in words is "fifty-five million, nine hundred nineteen thousand, four hundred eighty-eight".