255320525 has 6 divisors (see below), whose sum is σ = 316597482. Its totient is φ = 204256400.

The previous prime is 255320519. The next prime is 255320531. The reversal of 255320525 is 525023552.

It is an interprime number because it is at equal distance from previous prime (255320519) and next prime (255320531).

It can be written as a sum of positive squares in 3 ways, for example, as 57805609 + 197514916 = 7603^2 + 14054^2 .

It is not a de Polignac number, because 255320525 - 2¹⁰ = 255319501 is a prime.

It is a Duffinian number.

It is a Curzon number.

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, 5106386 + ... + 5106435.

It is an arithmetic number, because the mean of its divisors is an integer number (52766247).

Almost surely, 2^255320525 is an apocalyptic number.

255320525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

255320525 is a deficient number, since it is larger than the sum of its proper divisors (61276957).

255320525 is a wasteful number, since it uses less digits than its factorization.

255320525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10212831 (or 10212826 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 29.

The square root of 255320525 is about 15978.7522979737. The cubic root of 255320525 is about 634.3981525519.

The spelling of 255320525 in words is "two hundred fifty-five million, three hundred twenty thousand, five hundred twenty-five".