20265045 has 16 divisors (see below), whose sum is σ = 32674752. Its totient is φ = 10724480.

The previous prime is 20265017. The next prime is 20265059. The reversal of 20265045 is 54056202.

It is not a de Polignac number, because 20265045 - 2⁵ = 20265013 is a prime.

It is a congruent number.

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, 3192 + ... + 7121.

It is an arithmetic number, because the mean of its divisors is an integer number (2042172).

Almost surely, 2^20265045 is an apocalyptic number.

It is an amenable number.

20265045 is a deficient number, since it is larger than the sum of its proper divisors (12409707).

20265045 is a wasteful number, since it uses less digits than its factorization.

20265045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10452.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 20265045 is about 4501.6713562854. The cubic root of 20265045 is about 272.6355748794.

The spelling of 20265045 in words is "twenty million, two hundred sixty-five thousand, forty-five".