90251753 has 2 divisors, whose sum is σ = 90251754. Its totient is φ = 90251752.

The previous prime is 90251737. The next prime is 90251771. The reversal of 90251753 is 35715209.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75290329 + 14961424 = 8677^2 + 3868^2 .

It is a cyclic number.

It is not a de Polignac number, because 90251753 - 2⁴ = 90251737 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (90251713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45125876 + 45125877.

It is an arithmetic number, because the mean of its divisors is an integer number (45125877).

Almost surely, 2^90251753 is an apocalyptic number.

It is an amenable number.

90251753 is a deficient number, since it is larger than the sum of its proper divisors (1).

90251753 is an equidigital number, since it uses as much as digits as its factorization.

90251753 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 90251753 is about 9500.0922627099. The cubic root of 90251753 is about 448.5579401223.

The spelling of 90251753 in words is "ninety million, two hundred fifty-one thousand, seven hundred fifty-three".