57159492 has 48 divisors (see below), whose sum is σ = 144779712. Its totient is φ = 17447040.

The previous prime is 57159469. The next prime is 57159499. The reversal of 57159492 is 29495175.

It is not an unprimeable number, because it can be changed into a prime (57159499) 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, 19038 + ... + 21834.

It is an arithmetic number, because the mean of its divisors is an integer number (3016244).

Almost surely, 2^57159492 is an apocalyptic number.

57159492 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57159492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72389856).

57159492 is an abundant number, since it is smaller than the sum of its proper divisors (87620220).

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

57159492 is a wasteful number, since it uses less digits than its factorization.

57159492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2948 (or 2946 counting only the distinct ones).

The product of its digits is 113400, while the sum is 42.

The square root of 57159492 is about 7560.3896724970. The cubic root of 57159492 is about 385.2087292292.

The spelling of 57159492 in words is "fifty-seven million, one hundred fifty-nine thousand, four hundred ninety-two".