255725398 has 4 divisors (see below), whose sum is σ = 383588100. Its totient is φ = 127862698.

The previous prime is 255725383. The next prime is 255725453. The reversal of 255725398 is 893527552.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63931348 + ... + 63931351.

It is an arithmetic number, because the mean of its divisors is an integer number (95897025).

Almost surely, 2^255725398 is an apocalyptic number.

255725398 is a deficient number, since it is larger than the sum of its proper divisors (127862702).

255725398 is a wasteful number, since it uses less digits than its factorization.

255725398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127862701.

The product of its digits is 756000, while the sum is 46.

The square root of 255725398 is about 15991.4163850486. The cubic root of 255725398 is about 634.7333064873.

The spelling of 255725398 in words is "two hundred fifty-five million, seven hundred twenty-five thousand, three hundred ninety-eight".