57063636 has 144 divisors (see below), whose sum is σ = 176964480. Its totient is φ = 15845760.

The previous prime is 57063613. The next prime is 57063641. The reversal of 57063636 is 63636075.

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

It is a self number, because there is not a number n which added to its sum of digits gives 57063636.

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, 216841 + ... + 217103.

It is an arithmetic number, because the mean of its divisors is an integer number (1228920).

Almost surely, 2^57063636 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 57063636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88482240).

57063636 is an abundant number, since it is smaller than the sum of its proper divisors (119900844).

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

57063636 is a wasteful number, since it uses less digits than its factorization.

57063636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 36.

The square root of 57063636 is about 7554.0476567202. The cubic root of 57063636 is about 384.9932781196.

The spelling of 57063636 in words is "fifty-seven million, sixty-three thousand, six hundred thirty-six".