57242253 has 8 divisors (see below), whose sum is σ = 76480416. Its totient is φ = 38082800.

The previous prime is 57242249. The next prime is 57242303. The reversal of 57242253 is 35224275.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57242253 - 2² = 57242249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57242253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57242203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17958 + ... + 20903.

It is an arithmetic number, because the mean of its divisors is an integer number (9560052).

Almost surely, 2^57242253 is an apocalyptic number.

It is an amenable number.

57242253 is a deficient number, since it is larger than the sum of its proper divisors (19238163).

57242253 is a wasteful number, since it uses less digits than its factorization.

57242253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39355.

The product of its digits is 16800, while the sum is 30.

The square root of 57242253 is about 7565.8610217212. The cubic root of 57242253 is about 385.3945536330.

The spelling of 57242253 in words is "fifty-seven million, two hundred forty-two thousand, two hundred fifty-three".