90256049 has 8 divisors (see below), whose sum is σ = 97278720. Its totient is φ = 83244816.

The previous prime is 90256037. The next prime is 90256063. The reversal of 90256049 is 94065209.

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

It is a cyclic number.

It is not a de Polignac number, because 90256049 - 2⁸ = 90255793 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (90256069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20894 + ... + 24840.

It is an arithmetic number, because the mean of its divisors is an integer number (12159840).

Almost surely, 2^90256049 is an apocalyptic number.

It is an amenable number.

90256049 is a deficient number, since it is larger than the sum of its proper divisors (7022671).

90256049 is a wasteful number, since it uses less digits than its factorization.

90256049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5719.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 90256049 is about 9500.3183630866. The cubic root of 90256049 is about 448.5650571561.

The spelling of 90256049 in words is "ninety million, two hundred fifty-six thousand, forty-nine".