65426091 has 16 divisors (see below), whose sum is σ = 89827584. Its totient is φ = 42333984.

The previous prime is 65426087. The next prime is 65426093. The reversal of 65426091 is 19062456.

It is not a de Polignac number, because 65426091 - 2² = 65426087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65426093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20025 + ... + 23061.

It is an arithmetic number, because the mean of its divisors is an integer number (5614224).

Almost surely, 2^65426091 is an apocalyptic number.

65426091 is a deficient number, since it is larger than the sum of its proper divisors (24401493).

65426091 is a wasteful number, since it uses less digits than its factorization.

65426091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3250.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 65426091 is about 8088.6396260434. The cubic root of 65426091 is about 402.9492246595.

Subtracting from 65426091 its reverse (19062456), we obtain a triangular number (46363635 = T₉₆₂₉).

The spelling of 65426091 in words is "sixty-five million, four hundred twenty-six thousand, ninety-one".