57223790 has 16 divisors (see below), whose sum is σ = 110926368. Its totient is φ = 21128736.

The previous prime is 57223781. The next prime is 57223847. The reversal of 57223790 is 9732275.

It is a self number, because there is not a number n which added to its sum of digits gives 57223790.

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, 219962 + ... + 220221.

It is an arithmetic number, because the mean of its divisors is an integer number (6932898).

Almost surely, 2^57223790 is an apocalyptic number.

57223790 is a deficient number, since it is larger than the sum of its proper divisors (53702578).

57223790 is a wasteful number, since it uses less digits than its factorization.

57223790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440203.

The product of its (nonzero) digits is 26460, while the sum is 35.

The square root of 57223790 is about 7564.6407713784. The cubic root of 57223790 is about 385.3531139364.

The spelling of 57223790 in words is "fifty-seven million, two hundred twenty-three thousand, seven hundred ninety".