55403016 has 32 divisors (see below), whose sum is σ = 140265600. Its totient is φ = 18233280.

The previous prime is 55403011. The next prime is 55403027. The reversal of 55403016 is 61030455.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (55403011) 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, 12715 + ... + 16506.

It is an arithmetic number, because the mean of its divisors is an integer number (4383300).

Almost surely, 2^55403016 is an apocalyptic number.

It is an amenable number.

55403016 is an abundant number, since it is smaller than the sum of its proper divisors (84862584).

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

55403016 is a wasteful number, since it uses less digits than its factorization.

55403016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29309 (or 29305 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 55403016 is about 7443.3202268880. The cubic root of 55403016 is about 381.2218656655.

The spelling of 55403016 in words is "fifty-five million, four hundred three thousand, sixteen".