55724760 has 384 divisors, whose sum is σ = 235569600. Its totient is φ = 11757312.

The previous prime is 55724737. The next prime is 55724807. The reversal of 55724760 is 6742755.

55724760 is a `hidden beast` number, since 557 + 2 + 47 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4286514 + ... + 4286526.

Almost surely, 2^55724760 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 55724760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117784800).

55724760 is an abundant number, since it is smaller than the sum of its proper divisors (179844840).

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

55724760 is a wasteful number, since it uses less digits than its factorization.

55724760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59 (or 30 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The square root of 55724760 is about 7464.9018747737. The cubic root of 55724760 is about 381.9584030435.

The spelling of 55724760 in words is "fifty-five million, seven hundred twenty-four thousand, seven hundred sixty".