90256901 has 8 divisors (see below), whose sum is σ = 103236864. Its totient is φ = 77298480.

The previous prime is 90256877. The next prime is 90256909. The reversal of 90256901 is 10965209.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-90256901 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 (90256909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4916 + ... + 14306.

It is an arithmetic number, because the mean of its divisors is an integer number (12904608).

Almost surely, 2^90256901 is an apocalyptic number.

It is an amenable number.

90256901 is a deficient number, since it is larger than the sum of its proper divisors (12979963).

90256901 is a wasteful number, since it uses less digits than its factorization.

90256901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10771.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 90256901 is about 9500.3632035833. The cubic root of 90256901 is about 448.5664686080.

The spelling of 90256901 in words is "ninety million, two hundred fifty-six thousand, nine hundred one".