525553243 has 16 divisors (see below), whose sum is σ = 579962880. Its totient is φ = 474021504.

The previous prime is 525553213. The next prime is 525553271. The reversal of 525553243 is 342355525.

It is a cyclic number.

It is not a de Polignac number, because 525553243 - 2¹⁷ = 525422171 is a prime.

It is a super-2 number, since 2×525553243² = 552412422455634098, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 525553199 and 525553208.

It is not an unprimeable number, because it can be changed into a prime (525553213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94755 + ... + 100147.

It is an arithmetic number, because the mean of its divisors is an integer number (36247680).

Almost surely, 2^525553243 is an apocalyptic number.

525553243 is a deficient number, since it is larger than the sum of its proper divisors (54409637).

525553243 is a wasteful number, since it uses less digits than its factorization.

525553243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5658.

The product of its digits is 90000, while the sum is 34.

The square root of 525553243 is about 22924.9480479237. The cubic root of 525553243 is about 806.9975943589.

The spelling of 525553243 in words is "five hundred twenty-five million, five hundred fifty-three thousand, two hundred forty-three".