55723080 has 64 divisors (see below), whose sum is σ = 191053440. Its totient is φ = 12736512.

The previous prime is 55723069. The next prime is 55723091. The reversal of 55723080 is 8032755.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (55723069) and next prime (55723091).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32329 + ... + 34008.

It is an arithmetic number, because the mean of its divisors is an integer number (2985210).

Almost surely, 2^55723080 is an apocalyptic number.

It is an amenable number.

55723080 is an abundant number, since it is smaller than the sum of its proper divisors (135330360).

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

55723080 is a wasteful number, since it uses less digits than its factorization.

55723080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66358 (or 66354 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 55723080 is about 7464.7893473292. The cubic root of 55723080 is about 381.9545645549.

The spelling of 55723080 in words is "fifty-five million, seven hundred twenty-three thousand, eighty".