20465522 has 16 divisors (see below), whose sum is σ = 38273472. Its totient is φ = 7973520.

The previous prime is 20465521. The next prime is 20465531. The reversal of 20465522 is 22556402.

It is a junction number, because it is equal to n+sod(n) for n = 20465491 and 20465500.

It is not an unprimeable number, because it can be changed into a prime (20465521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66293 + ... + 66600.

It is an arithmetic number, because the mean of its divisors is an integer number (2392092).

Almost surely, 2^20465522 is an apocalyptic number.

20465522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20465522 is a deficient number, since it is larger than the sum of its proper divisors (17807950).

20465522 is a wasteful number, since it uses less digits than its factorization.

20465522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132913.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 20465522 is about 4523.8835086682. The cubic root of 20465522 is about 273.5316648331.

The spelling of 20465522 in words is "twenty million, four hundred sixty-five thousand, five hundred twenty-two".