55720496 has 20 divisors (see below), whose sum is σ = 116263392. Its totient is φ = 25717056.

The previous prime is 55720481. The next prime is 55720541. The reversal of 55720496 is 69402755.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133736 + ... + 134151.

Almost surely, 2^55720496 is an apocalyptic number.

It is an amenable number.

55720496 is an abundant number, since it is smaller than the sum of its proper divisors (60542896).

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

55720496 is a wasteful number, since it uses less digits than its factorization.

55720496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267908 (or 267902 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 55720496 is about 7464.6162660916. The cubic root of 55720496 is about 381.9486604433.

The spelling of 55720496 in words is "fifty-five million, seven hundred twenty thousand, four hundred ninety-six".