57828225 has 96 divisors (see below), whose sum is σ = 121381120. Its totient is φ = 23639040.

The previous prime is 57828209. The next prime is 57828227. The reversal of 57828225 is 52282875.

It is a happy number.

It is not a de Polignac number, because 57828225 - 2⁴ = 57828209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (57828227) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 252411 + ... + 252639.

Almost surely, 2^57828225 is an apocalyptic number.

It is an amenable number.

57828225 is an abundant number, since it is smaller than the sum of its proper divisors (63552895).

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

57828225 is a wasteful number, since it uses less digits than its factorization.

57828225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299 (or 294 counting only the distinct ones).

The product of its digits is 89600, while the sum is 39.

The square root of 57828225 is about 7604.4871621958. The cubic root of 57828225 is about 386.7051483534.

The spelling of 57828225 in words is "fifty-seven million, eight hundred twenty-eight thousand, two hundred twenty-five".