90265001 has 2 divisors, whose sum is σ = 90265002. Its totient is φ = 90265000.

The previous prime is 90264997. The next prime is 90265027. The reversal of 90265001 is 10056209.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75672601 + 14592400 = 8699^2 + 3820^2 .

It is a cyclic number.

It is not a de Polignac number, because 90265001 - 2² = 90264997 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (90265031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45132500 + 45132501.

It is an arithmetic number, because the mean of its divisors is an integer number (45132501).

Almost surely, 2^90265001 is an apocalyptic number.

It is an amenable number.

90265001 is a deficient number, since it is larger than the sum of its proper divisors (1).

90265001 is an equidigital number, since it uses as much as digits as its factorization.

90265001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 90265001 is about 9500.7894935105. The cubic root of 90265001 is about 448.5798868976.

The spelling of 90265001 in words is "ninety million, two hundred sixty-five thousand, one".