255542497 has 12 divisors (see below), whose sum is σ = 298916436. Its totient is φ = 217818720.

The previous prime is 255542479. The next prime is 255542503. The reversal of 255542497 is 794245552.

It can be written as a sum of positive squares in 2 ways, for example, as 16654561 + 238887936 = 4081^2 + 15456^2 .

It is not a de Polignac number, because 255542497 - 2¹⁵ = 255509729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255542447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5538 + ... + 23275.

It is an arithmetic number, because the mean of its divisors is an integer number (24909703).

Almost surely, 2^255542497 is an apocalyptic number.

It is an amenable number.

255542497 is a deficient number, since it is larger than the sum of its proper divisors (43373939).

255542497 is a wasteful number, since it uses less digits than its factorization.

255542497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29008 (or 29001 counting only the distinct ones).

The product of its digits is 504000, while the sum is 43.

The square root of 255542497 is about 15985.6966379323. The cubic root of 255542497 is about 634.5819448497.

The spelling of 255542497 in words is "two hundred fifty-five million, five hundred forty-two thousand, four hundred ninety-seven".