90256307 has 2 divisors, whose sum is σ = 90256308. Its totient is φ = 90256306.

The previous prime is 90256291. The next prime is 90256321. The reversal of 90256307 is 70365209.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90256307 - 2⁴ = 90256291 is a prime.

It is not a weakly prime, because it can be changed into another prime (90255307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45128153 + 45128154.

It is an arithmetic number, because the mean of its divisors is an integer number (45128154).

Almost surely, 2^90256307 is an apocalyptic number.

90256307 is a deficient number, since it is larger than the sum of its proper divisors (1).

90256307 is an equidigital number, since it uses as much as digits as its factorization.

90256307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 90256307 is about 9500.3319415692. The cubic root of 90256307 is about 448.5654845685.

The spelling of 90256307 in words is "ninety million, two hundred fifty-six thousand, three hundred seven".