90445265 has 8 divisors (see below), whose sum is σ = 109162728. Its totient is φ = 71937280.

The previous prime is 90445237. The next prime is 90445273. The reversal of 90445265 is 56254409.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16192576 + 74252689 = 4024^2 + 8617^2 .

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

It is not a de Polignac number, because 90445265 - 2¹⁰ = 90444241 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51416 + ... + 53145.

It is an arithmetic number, because the mean of its divisors is an integer number (13645341).

Almost surely, 2^90445265 is an apocalyptic number.

It is an amenable number.

90445265 is a deficient number, since it is larger than the sum of its proper divisors (18717463).

90445265 is a wasteful number, since it uses less digits than its factorization.

90445265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104739.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 90445265 is about 9510.2715523796. The cubic root of 90445265 is about 448.8783009539.

The spelling of 90445265 in words is "ninety million, four hundred forty-five thousand, two hundred sixty-five".