4255720 has 32 divisors (see below), whose sum is σ = 10944000. Its totient is φ = 1459008.

The previous prime is 4255697. The next prime is 4255739. The reversal of 4255720 is 275524.

It is a super-2 number, since 2×4255720² = 36222305436800, which contains 22 as substring.

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, 7320 + ... + 7879.

It is an arithmetic number, because the mean of its divisors is an integer number (342000).

Almost surely, 2^4255720 is an apocalyptic number.

4255720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4255720 is an abundant number, since it is smaller than the sum of its proper divisors (6688280).

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

4255720 is a wasteful number, since it uses less digits than its factorization.

4255720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15217 (or 15213 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 4255720 is about 2062.9396501110. The cubic root of 4255720 is about 162.0532264262.

The spelling of 4255720 in words is "four million, two hundred fifty-five thousand, seven hundred twenty".