90565274 has 4 divisors (see below), whose sum is σ = 135847914. Its totient is φ = 45282636.

The previous prime is 90565259. The next prime is 90565303. The reversal of 90565274 is 47256509.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 63888049 + 26677225 = 7993^2 + 5165^2 .

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 as a sum of consecutive naturals, namely, 22641317 + ... + 22641320.

Almost surely, 2^90565274 is an apocalyptic number.

90565274 is a deficient number, since it is larger than the sum of its proper divisors (45282640).

90565274 is a wasteful number, since it uses less digits than its factorization.

90565274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45282639.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 90565274 is about 9516.5789021055. The cubic root of 90565274 is about 449.0767474128.

The spelling of 90565274 in words is "ninety million, five hundred sixty-five thousand, two hundred seventy-four".