9512252021 has 2 divisors, whose sum is σ = 9512252022. Its totient is φ = 9512252020.

The previous prime is 9512251999. The next prime is 9512252047. The reversal of 9512252021 is 1202522159.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5316451396 + 4195800625 = 72914^2 + 64775^2 .

It is a cyclic number.

It is not a de Polignac number, because 9512252021 - 2¹⁴ = 9512235637 is a prime.

It is a super-2 number, since 2×9512252021² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9512252921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4756126010 + 4756126011.

It is an arithmetic number, because the mean of its divisors is an integer number (4756126011).

Almost surely, 2^9512252021 is an apocalyptic number.

It is an amenable number.

9512252021 is a deficient number, since it is larger than the sum of its proper divisors (1).

9512252021 is an equidigital number, since it uses as much as digits as its factorization.

9512252021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 9512252021 is about 97530.7747380282. The cubic root of 9512252021 is about 2118.8218816892.

The spelling of 9512252021 in words is "nine billion, five hundred twelve million, two hundred fifty-two thousand, twenty-one".