55513080 has 192 divisors, whose sum is σ = 215460000. Its totient is φ = 12676608.

The previous prime is 55513027. The next prime is 55513093. The reversal of 55513080 is 8031555.

55513080 is a `hidden beast` number, since 5 + 551 + 30 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52396 + ... + 53444.

Almost surely, 2^55513080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55513080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107730000).

55513080 is an abundant number, since it is smaller than the sum of its proper divisors (159946920).

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

55513080 is a wasteful number, since it uses less digits than its factorization.

55513080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083 (or 1066 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 55513080 is about 7450.7100332787. The cubic root of 55513080 is about 381.4741446440.

The spelling of 55513080 in words is "fifty-five million, five hundred thirteen thousand, eighty".