57465221 has 4 divisors (see below), whose sum is σ = 62689344. Its totient is φ = 52241100.

The previous prime is 57465209. The next prime is 57465229. The reversal of 57465221 is 12256475.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57465221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57465229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2612045 + ... + 2612066.

It is an arithmetic number, because the mean of its divisors is an integer number (15672336).

Almost surely, 2^57465221 is an apocalyptic number.

It is an amenable number.

57465221 is a deficient number, since it is larger than the sum of its proper divisors (5224123).

57465221 is a wasteful number, since it uses less digits than its factorization.

57465221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5224122.

The product of its digits is 16800, while the sum is 32.

The square root of 57465221 is about 7580.5818378275. The cubic root of 57465221 is about 385.8942970789.

The spelling of 57465221 in words is "fifty-seven million, four hundred sixty-five thousand, two hundred twenty-one".