57299994 has 32 divisors (see below), whose sum is σ = 130299840. Its totient is φ = 18655056.

The previous prime is 57299993. The next prime is 57299999. The reversal of 57299994 is 49999275.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 57299994.

It is not an unprimeable number, because it can be changed into a prime (57299993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10017 + ... + 14660.

It is an arithmetic number, because the mean of its divisors is an integer number (4071870).

Almost surely, 2^57299994 is an apocalyptic number.

57299994 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

57299994 is an abundant number, since it is smaller than the sum of its proper divisors (72999846).

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

57299994 is a wasteful number, since it uses less digits than its factorization.

57299994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24731 (or 24725 counting only the distinct ones).

The product of its digits is 1837080, while the sum is 54.

The square root of 57299994 is about 7569.6759507921. The cubic root of 57299994 is about 385.5240942411.

The spelling of 57299994 in words is "fifty-seven million, two hundred ninety-nine thousand, nine hundred ninety-four".