90425663 has 2 divisors, whose sum is σ = 90425664. Its totient is φ = 90425662.

The previous prime is 90425653. The next prime is 90425747. The reversal of 90425663 is 36652409.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90425663 - 2⁸ = 90425407 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90425633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45212831 + 45212832.

It is an arithmetic number, because the mean of its divisors is an integer number (45212832).

Almost surely, 2^90425663 is an apocalyptic number.

90425663 is a deficient number, since it is larger than the sum of its proper divisors (1).

90425663 is an equidigital number, since it uses as much as digits as its factorization.

90425663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 90425663 is about 9509.2409265935. The cubic root of 90425663 is about 448.8458704809.

The spelling of 90425663 in words is "ninety million, four hundred twenty-five thousand, six hundred sixty-three".