57212694 has 72 divisors (see below), whose sum is σ = 157335048. Its totient is φ = 14857920.

The previous prime is 57212681. The next prime is 57212717. The reversal of 57212694 is 49621275.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6754 + ... + 12650.

It is an arithmetic number, because the mean of its divisors is an integer number (2185209).

Almost surely, 2^57212694 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57212694, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78667524).

57212694 is an abundant number, since it is smaller than the sum of its proper divisors (100122354).

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

57212694 is a wasteful number, since it uses less digits than its factorization.

57212694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5930 (or 5920 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 57212694 is about 7563.9073235994. The cubic root of 57212694 is about 385.3282049806.

The spelling of 57212694 in words is "fifty-seven million, two hundred twelve thousand, six hundred ninety-four".