255724538 has 16 divisors (see below), whose sum is σ = 394377984. Its totient is φ = 124272720.

The previous prime is 255724531. The next prime is 255724541. The reversal of 255724538 is 835427552.

It is a junction number, because it is equal to n+sod(n) for n = 255724495 and 255724504.

It is not an unprimeable number, because it can be changed into a prime (255724531) 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, 135743 + ... + 137613.

It is an arithmetic number, because the mean of its divisors is an integer number (24648624).

Almost surely, 2^255724538 is an apocalyptic number.

255724538 is a deficient number, since it is larger than the sum of its proper divisors (138653446).

255724538 is a wasteful number, since it uses less digits than its factorization.

255724538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3757.

The product of its digits is 336000, while the sum is 41.

The square root of 255724538 is about 15991.3894956004. The cubic root of 255724538 is about 634.7325949542.

The spelling of 255724538 in words is "two hundred fifty-five million, seven hundred twenty-four thousand, five hundred thirty-eight".