65022090 has 32 divisors (see below), whose sum is σ = 178346880. Its totient is φ = 14862144.

The previous prime is 65022073. The next prime is 65022109. The reversal of 65022090 is 9022056.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 65022090.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154605 + ... + 155024.

It is an arithmetic number, because the mean of its divisors is an integer number (5573340).

Almost surely, 2^65022090 is an apocalyptic number.

65022090 is an abundant number, since it is smaller than the sum of its proper divisors (113324790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65022090 is a wasteful number, since it uses less digits than its factorization.

65022090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309646.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 65022090 is about 8063.6275955676. The cubic root of 65022090 is about 402.1181183063.

The spelling of 65022090 in words is "sixty-five million, twenty-two thousand, ninety".