525315501 has 12 divisors (see below), whose sum is σ = 758998812. Its totient is φ = 350113536.

The previous prime is 525315473. The next prime is 525315533. The reversal of 525315501 is 105513525.

It can be written as a sum of positive squares in 2 ways, for example, as 316484100 + 208831401 = 17790^2 + 14451^2 .

It is not a de Polignac number, because 525315501 - 2¹⁰ = 525314477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525315551) 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, 43965 + ... + 54621.

It is an arithmetic number, because the mean of its divisors is an integer number (63249901).

Almost surely, 2^525315501 is an apocalyptic number.

It is an amenable number.

525315501 is a deficient number, since it is larger than the sum of its proper divisors (233683311).

525315501 is a wasteful number, since it uses less digits than its factorization.

525315501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16140 (or 16137 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 525315501 is about 22919.7622369867. The cubic root of 525315501 is about 806.8758901284.

The spelling of 525315501 in words is "five hundred twenty-five million, three hundred fifteen thousand, five hundred one".