20522874 has 16 divisors (see below), whose sum is σ = 41347008. Its totient is φ = 6790752.

The previous prime is 20522867. The next prime is 20522881. The reversal of 20522874 is 47822502.

It is an interprime number because it is at equal distance from previous prime (20522867) and next prime (20522881).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11662 + ... + 13305.

It is an arithmetic number, because the mean of its divisors is an integer number (2584188).

Almost surely, 2^20522874 is an apocalyptic number.

20522874 is an abundant number, since it is smaller than the sum of its proper divisors (20824134).

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

20522874 is a wasteful number, since it uses less digits than its factorization.

20522874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25109.

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 20522874 is about 4530.2178755552. The cubic root of 20522874 is about 273.7869389907.

The spelling of 20522874 in words is "twenty million, five hundred twenty-two thousand, eight hundred seventy-four".