525954645 has 24 divisors (see below), whose sum is σ = 918319896. Its totient is φ = 278458368.

The previous prime is 525954641. The next prime is 525954659. The reversal of 525954645 is 546459525.

525954645 is a `hidden beast` number, since 52 + 59 + 546 + 4 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 236206161 + 289748484 = 15369^2 + 17022^2 .

It is not a de Polignac number, because 525954645 - 2² = 525954641 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 525954645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525954641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36492 + ... + 48821.

It is an arithmetic number, because the mean of its divisors is an integer number (38263329).

Almost surely, 2^525954645 is an apocalyptic number.

It is an amenable number.

525954645 is a deficient number, since it is larger than the sum of its proper divisors (392365251).

525954645 is a wasteful number, since it uses less digits than its factorization.

525954645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85461 (or 85458 counting only the distinct ones).

The product of its digits is 1080000, while the sum is 45.

The square root of 525954645 is about 22933.7010750555. The cubic root of 525954645 is about 807.2029956944.

The spelling of 525954645 in words is "five hundred twenty-five million, nine hundred fifty-four thousand, six hundred forty-five".