57051252 has 72 divisors (see below), whose sum is σ = 154908936. Its totient is φ = 17639424.

The previous prime is 57051221. The next prime is 57051257. The reversal of 57051252 is 25215075.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 21123216 + 35928036 = 4596^2 + 5994^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57051257) 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, 44038 + ... + 45314.

It is an arithmetic number, because the mean of its divisors is an integer number (2151513).

Almost surely, 2^57051252 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 57051252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77454468).

57051252 is an abundant number, since it is smaller than the sum of its proper divisors (97857684).

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

57051252 is a wasteful number, since it uses less digits than its factorization.

57051252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377 (or 1372 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 57051252 is about 7553.2279192409. The cubic root of 57051252 is about 384.9654255791.

The spelling of 57051252 in words is "fifty-seven million, fifty-one thousand, two hundred fifty-two".