525253121 has 2 divisors, whose sum is σ = 525253122. Its totient is φ = 525253120.

The previous prime is 525253111. The next prime is 525253159. The reversal of 525253121 is 121352525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 458602225 + 66650896 = 21415^2 + 8164^2 .

It is a cyclic number.

It is not a de Polignac number, because 525253121 - 2¹⁰ = 525252097 is a prime.

It is a super-2 number, since 2×525253121² = 551781682240481282, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (525253111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262626560 + 262626561.

It is an arithmetic number, because the mean of its divisors is an integer number (262626561).

Almost surely, 2^525253121 is an apocalyptic number.

It is an amenable number.

525253121 is a deficient number, since it is larger than the sum of its proper divisors (1).

525253121 is an equidigital number, since it uses as much as digits as its factorization.

525253121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3000, while the sum is 26.

The square root of 525253121 is about 22918.4013622242. The cubic root of 525253121 is about 806.8439506492.

The spelling of 525253121 in words is "five hundred twenty-five million, two hundred fifty-three thousand, one hundred twenty-one".