261527325 has 12 divisors (see below), whose sum is σ = 432391968. Its totient is φ = 139481200.

The previous prime is 261527311. The next prime is 261527339. The reversal of 261527325 is 523725162.

It is an interprime number because it is at equal distance from previous prime (261527311) and next prime (261527339).

It is not a de Polignac number, because 261527325 - 2⁴ = 261527309 is a prime.

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 in 11 ways as a sum of consecutive naturals, for example, 1743441 + ... + 1743590.

It is an arithmetic number, because the mean of its divisors is an integer number (36032664).

Almost surely, 2^261527325 is an apocalyptic number.

261527325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

261527325 is a deficient number, since it is larger than the sum of its proper divisors (170864643).

261527325 is a wasteful number, since it uses less digits than its factorization.

261527325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3487044 (or 3487039 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 261527325 is about 16171.8064853621. The cubic root of 261527325 is about 639.4977545620.

The spelling of 261527325 in words is "two hundred sixty-one million, five hundred twenty-seven thousand, three hundred twenty-five".