57069312 has 72 divisors (see below), whose sum is σ = 159922560. Its totient is φ = 18017280.

The previous prime is 57069307. The next prime is 57069329. The reversal of 57069312 is 21396075.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12637 + ... + 16547.

Almost surely, 2^57069312 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 57069312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79961280).

57069312 is an abundant number, since it is smaller than the sum of its proper divisors (102853248).

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

57069312 is a wasteful number, since it uses less digits than its factorization.

57069312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3949 (or 3935 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 57069312 is about 7554.4233400042. The cubic root of 57069312 is about 385.0060425206.

It can be divided in two parts, 57069 and 312, that multiplied together give a triangular number (17805528 = T₅₉₆₇).

The spelling of 57069312 in words is "fifty-seven million, sixty-nine thousand, three hundred twelve".