20265377 has 16 divisors (see below), whose sum is σ = 23550912. Its totient is φ = 17233920.

The previous prime is 20265299. The next prime is 20265391. The reversal of 20265377 is 77356202.

It is a happy number.

It is not a de Polignac number, because 20265377 - 2⁸ = 20265121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20205377) 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, 57233 + ... + 57585.

It is an arithmetic number, because the mean of its divisors is an integer number (1471932).

Almost surely, 2^20265377 is an apocalyptic number.

It is an amenable number.

20265377 is a deficient number, since it is larger than the sum of its proper divisors (3285535).

20265377 is a wasteful number, since it uses less digits than its factorization.

20265377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 20265377 is about 4501.7082313273. The cubic root of 20265377 is about 272.6370637241.

The spelling of 20265377 in words is "twenty million, two hundred sixty-five thousand, three hundred seventy-seven".