20152254 has 16 divisors (see below), whose sum is σ = 40613760. Its totient is φ = 6665880.

The previous prime is 20152213. The next prime is 20152261. The reversal of 20152254 is 45225102.

It is a happy number.

It is a super-2 number, since 2×20152254² = 812226682561032, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20152254.

It is a congruent 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, 12034 + ... + 13605.

It is an arithmetic number, because the mean of its divisors is an integer number (2538360).

Almost surely, 2^20152254 is an apocalyptic number.

20152254 is an abundant number, since it is smaller than the sum of its proper divisors (20461506).

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

20152254 is a wasteful number, since it uses less digits than its factorization.

20152254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25775.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 20152254 is about 4489.1261955975. The cubic root of 20152254 is about 272.1288227009.

Adding to 20152254 its reverse (45225102), we get a palindrome (65377356).

The spelling of 20152254 in words is "twenty million, one hundred fifty-two thousand, two hundred fifty-four".