525932421 has 32 divisors (see below), whose sum is σ = 839497728. Its totient is φ = 286355520.

The previous prime is 525932413. The next prime is 525932489. The reversal of 525932421 is 124239525.

It is not a de Polignac number, because 525932421 - 2³ = 525932413 is a prime.

It is a super-2 number, since 2×525932421² = 553209822917842482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525932321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131826 + ... + 135756.

It is an arithmetic number, because the mean of its divisors is an integer number (26234304).

Almost surely, 2^525932421 is an apocalyptic number.

It is an amenable number.

525932421 is a deficient number, since it is larger than the sum of its proper divisors (313565307).

525932421 is a wasteful number, since it uses less digits than its factorization.

525932421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4241.

The product of its digits is 21600, while the sum is 33.

The square root of 525932421 is about 22933.2165428228. The cubic root of 525932421 is about 807.1916261893.

The spelling of 525932421 in words is "five hundred twenty-five million, nine hundred thirty-two thousand, four hundred twenty-one".