9512252921 has 2 divisors, whose sum is σ = 9512252922. Its totient is φ = 9512252920.

The previous prime is 9512252917. The next prime is 9512252923. The reversal of 9512252921 is 1292522159.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8734958521 + 777294400 = 93461^2 + 27880^2 .

It is a cyclic number.

It is not a de Polignac number, because 9512252921 - 2² = 9512252917 is a prime.

Together with 9512252923, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9512252923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4756126460 + 4756126461.

It is an arithmetic number, because the mean of its divisors is an integer number (4756126461).

Almost surely, 2^9512252921 is an apocalyptic number.

It is an amenable number.

9512252921 is a deficient number, since it is larger than the sum of its proper divisors (1).

9512252921 is an equidigital number, since it uses as much as digits as its factorization.

9512252921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32400, while the sum is 38.

The square root of 9512252921 is about 97530.7793519564. The cubic root of 9512252921 is about 2118.8219485132.

The spelling of 9512252921 in words is "nine billion, five hundred twelve million, two hundred fifty-two thousand, nine hundred twenty-one".