525883621 has 2 divisors, whose sum is σ = 525883622. Its totient is φ = 525883620.

The previous prime is 525883607. The next prime is 525883637. The reversal of 525883621 is 126388525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 501132996 + 24750625 = 22386^2 + 4975^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-525883621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (525853621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262941810 + 262941811.

It is an arithmetic number, because the mean of its divisors is an integer number (262941811).

Almost surely, 2^525883621 is an apocalyptic number.

It is an amenable number.

525883621 is a deficient number, since it is larger than the sum of its proper divisors (1).

525883621 is an equidigital number, since it uses as much as digits as its factorization.

525883621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 115200, while the sum is 40.

The square root of 525883621 is about 22932.1525592344. The cubic root of 525883621 is about 807.1666596294.

The spelling of 525883621 in words is "five hundred twenty-five million, eight hundred eighty-three thousand, six hundred twenty-one".