90935307251 has 2 divisors, whose sum is σ = 90935307252. Its totient is φ = 90935307250.

The previous prime is 90935307227. The next prime is 90935307263. The reversal of 90935307251 is 15270353909.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90935307251 - 2¹⁰ = 90935306227 is a prime.

It is not a weakly prime, because it can be changed into another prime (90935307271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45467653625 + 45467653626.

It is an arithmetic number, because the mean of its divisors is an integer number (45467653626).

Almost surely, 2^90935307251 is an apocalyptic number.

90935307251 is a deficient number, since it is larger than the sum of its proper divisors (1).

90935307251 is an equidigital number, since it uses as much as digits as its factorization.

90935307251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 255150, while the sum is 44.

The spelling of 90935307251 in words is "ninety billion, nine hundred thirty-five million, three hundred seven thousand, two hundred fifty-one".