57563730 has 192 divisors, whose sum is σ = 188784000. Its totient is φ = 12410496.

The previous prime is 57563729. The next prime is 57563743. The reversal of 57563730 is 3736575.

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, 251256 + ... + 251484.

It is an arithmetic number, because the mean of its divisors is an integer number (983250).

Almost surely, 2^57563730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57563730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94392000).

57563730 is an abundant number, since it is smaller than the sum of its proper divisors (131220270).

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

57563730 is a wasteful number, since it uses less digits than its factorization.

57563730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 66150, while the sum is 36.

The square root of 57563730 is about 7587.0765120697. The cubic root of 57563730 is about 386.1146759424.

The spelling of 57563730 in words is "fifty-seven million, five hundred sixty-three thousand, seven hundred thirty".