255420725 has 48 divisors (see below), whose sum is σ = 374190336. Its totient is φ = 169344000.

The previous prime is 255420721. The next prime is 255420751. The reversal of 255420725 is 527024552.

It is not a de Polignac number, because 255420725 - 2² = 255420721 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 255420691 and 255420700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255420721) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 757757 + ... + 758093.

It is an arithmetic number, because the mean of its divisors is an integer number (7795632).

Almost surely, 2^255420725 is an apocalyptic number.

255420725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

255420725 is a deficient number, since it is larger than the sum of its proper divisors (118769611).

255420725 is a wasteful number, since it uses less digits than its factorization.

255420725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486 (or 481 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 32.

The square root of 255420725 is about 15981.8874041835. The cubic root of 255420725 is about 634.4811311023.

The spelling of 255420725 in words is "two hundred fifty-five million, four hundred twenty thousand, seven hundred twenty-five".