525465 has 12 divisors (see below), whose sum is σ = 910884. Its totient is φ = 280224.

The previous prime is 525461. The next prime is 525467. The reversal of 525465 is 564525.

It can be written as a sum of positive squares in 2 ways, for example, as 328329 + 197136 = 573^2 + 444^2 .

It is not a de Polignac number, because 525465 - 2² = 525461 is a prime.

It is a super-2 number, since 2×525465² = 552226932450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (525461) 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, 5794 + ... + 5883.

It is an arithmetic number, because the mean of its divisors is an integer number (75907).

2⁵²⁵⁴⁶⁵ is an apocalyptic number.

It is an amenable number.

525465 is a deficient number, since it is larger than the sum of its proper divisors (385419).

525465 is a wasteful number, since it uses less digits than its factorization.

525465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11688 (or 11685 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 525465 is about 724.8896467739. The cubic root of 525465 is about 80.6952425529.

Subtracting 525465 from its reverse (564525), we obtain a triangular number (39060 = T₂₇₉).

It can be divided in two parts, 525 and 465, that added together give a triangular number (990 = T₄₄).

The spelling of 525465 in words is "five hundred twenty-five thousand, four hundred sixty-five".