57132726 has 48 divisors (see below), whose sum is σ = 137525040. Its totient is φ = 15758400.

The previous prime is 57132703. The next prime is 57132727. The reversal of 57132726 is 62723175.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57132727) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5176 + ... + 11876.

It is an arithmetic number, because the mean of its divisors is an integer number (2865105).

Almost surely, 2^57132726 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57132726, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68762520).

57132726 is an abundant number, since it is smaller than the sum of its proper divisors (80392314).

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

57132726 is a wasteful number, since it uses less digits than its factorization.

57132726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6749 (or 6742 counting only the distinct ones).

The product of its digits is 17640, while the sum is 33.

The square root of 57132726 is about 7558.6193183676. The cubic root of 57132726 is about 385.1485927802.

The spelling of 57132726 in words is "fifty-seven million, one hundred thirty-two thousand, seven hundred twenty-six".