20057952 has 72 divisors (see below), whose sum is σ = 54382104. Its totient is φ = 6472704.

The previous prime is 20057941. The next prime is 20057953. The reversal of 20057952 is 25975002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20057953) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 177448 + ... + 177560.

It is an arithmetic number, because the mean of its divisors is an integer number (755307).

Almost surely, 2^20057952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20057952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27191052).

20057952 is an abundant number, since it is smaller than the sum of its proper divisors (34324152).

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

20057952 is a wasteful number, since it uses less digits than its factorization.

20057952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 20057952 is about 4478.6104988043. The cubic root of 20057952 is about 271.7036853883.

The spelling of 20057952 in words is "twenty million, fifty-seven thousand, nine hundred fifty-two".