90961256 has 16 divisors (see below), whose sum is σ = 171363840. Its totient is φ = 45264240.

The previous prime is 90961217. The next prime is 90961279. The reversal of 90961256 is 65216909.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25256 + ... + 28631.

It is an arithmetic number, because the mean of its divisors is an integer number (10710240).

Almost surely, 2^90961256 is an apocalyptic number.

It is an amenable number.

90961256 is a deficient number, since it is larger than the sum of its proper divisors (80402584).

90961256 is a wasteful number, since it uses less digits than its factorization.

90961256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54104 (or 54100 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 90961256 is about 9537.3610605869. The cubic root of 90961256 is about 449.7303009447.

The spelling of 90961256 in words is "ninety million, nine hundred sixty-one thousand, two hundred fifty-six".