90425263 has 4 divisors (see below), whose sum is σ = 91514808. Its totient is φ = 89335720.

The previous prime is 90425221. The next prime is 90425267. The reversal of 90425263 is 36252409.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90425263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90425267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 544648 + ... + 544813.

It is an arithmetic number, because the mean of its divisors is an integer number (22878702).

Almost surely, 2^90425263 is an apocalyptic number.

90425263 is a deficient number, since it is larger than the sum of its proper divisors (1089545).

90425263 is a wasteful number, since it uses less digits than its factorization.

90425263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089544.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 90425263 is about 9509.2198943972. The cubic root of 90425263 is about 448.8452086532.

The spelling of 90425263 in words is "ninety million, four hundred twenty-five thousand, two hundred sixty-three".