525462813 has 6 divisors (see below), whose sum is σ = 759001854. Its totient is φ = 350308536.

The previous prime is 525462811. The next prime is 525462823. The reversal of 525462813 is 318264525.

525462813 is a `hidden beast` number, since 5 + 25 + 4 + 628 + 1 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 452923524 + 72539289 = 21282^2 + 8517^2 .

It is not a de Polignac number, because 525462813 - 2¹ = 525462811 is a prime.

It is a super-2 number, since 2×525462813² = 552222335691745938, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525462811) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29192370 + ... + 29192387.

It is an arithmetic number, because the mean of its divisors is an integer number (126500309).

Almost surely, 2^525462813 is an apocalyptic number.

It is an amenable number.

525462813 is a deficient number, since it is larger than the sum of its proper divisors (233539041).

525462813 is a wasteful number, since it uses less digits than its factorization.

525462813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58384763 (or 58384760 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 525462813 is about 22922.9756576235. The cubic root of 525462813 is about 806.9513060082.

The spelling of 525462813 in words is "five hundred twenty-five million, four hundred sixty-two thousand, eight hundred thirteen".