90256037 has 2 divisors, whose sum is σ = 90256038. Its totient is φ = 90256036.

The previous prime is 90256031. The next prime is 90256063. The reversal of 90256037 is 73065209.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78872161 + 11383876 = 8881^2 + 3374^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90256037 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 90255994 and 90256012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90256031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45128018 + 45128019.

It is an arithmetic number, because the mean of its divisors is an integer number (45128019).

Almost surely, 2^90256037 is an apocalyptic number.

It is an amenable number.

90256037 is a deficient number, since it is larger than the sum of its proper divisors (1).

90256037 is an equidigital number, since it uses as much as digits as its factorization.

90256037 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 90256037 is about 9500.3177315288. The cubic root of 90256037 is about 448.5650372764.

The spelling of 90256037 in words is "ninety million, two hundred fifty-six thousand, thirty-seven".