57240227520 has 336 divisors, whose sum is σ = 226402026240. Its totient is φ = 13002467328.

The previous prime is 57240227461. The next prime is 57240227533. The reversal of 57240227520 is 2572204275.

57240227520 is a `hidden beast` number, since 5 + 72 + 40 + 2 + 27 + 520 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

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

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, 3277371 + ... + 3294789.

Almost surely, 2^57240227520 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 57240227520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113201013120).

57240227520 is an abundant number, since it is smaller than the sum of its proper divisors (169161798720).

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

57240227520 is a wasteful number, since it uses less digits than its factorization.

57240227520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17612 (or 17599 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 36.

The spelling of 57240227520 in words is "fifty-seven billion, two hundred forty million, two hundred twenty-seven thousand, five hundred twenty".