57563740 has 24 divisors (see below), whose sum is σ = 130183200. Its totient is φ = 21254208.

The previous prime is 57563729. The next prime is 57563743. The reversal of 57563740 is 4736575.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 57563740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57563743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110440 + ... + 110959.

It is an arithmetic number, because the mean of its divisors is an integer number (5424300).

Almost surely, 2^57563740 is an apocalyptic number.

It is an amenable number.

57563740 is an abundant number, since it is smaller than the sum of its proper divisors (72619460).

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

57563740 is a wasteful number, since it uses less digits than its factorization.

57563740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221421 (or 221419 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 37.

The square root of 57563740 is about 7587.0771710851. The cubic root of 57563740 is about 386.1146983011.

The spelling of 57563740 in words is "fifty-seven million, five hundred sixty-three thousand, seven hundred forty".