255317723725 has 6 divisors (see below), whose sum is σ = 316593977450. Its totient is φ = 204254178960.

The previous prime is 255317723711. The next prime is 255317723737. The reversal of 255317723725 is 527327713552.

It can be written as a sum of positive squares in 3 ways, for example, as 22982436 + 255294741289 = 4794^2 + 505267^2 .

It is not a de Polignac number, because 255317723725 - 2¹¹ = 255317721677 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5106354450 + ... + 5106354499.

Almost surely, 2^255317723725 is an apocalyptic number.

255317723725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

255317723725 is a deficient number, since it is larger than the sum of its proper divisors (61276253725).

255317723725 is a wasteful number, since it uses less digits than its factorization.

255317723725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10212708959 (or 10212708954 counting only the distinct ones).

The product of its digits is 3087000, while the sum is 49.

The spelling of 255317723725 in words is "two hundred fifty-five billion, three hundred seventeen million, seven hundred twenty-three thousand, seven hundred twenty-five".