20011952 has 20 divisors (see below), whose sum is σ = 39506400. Its totient is φ = 9816768.

The previous prime is 20011951. The next prime is 20011967. The reversal of 20011952 is 25911002.

It is not an unprimeable number, because it can be changed into a prime (20011951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10952 + ... + 12647.

It is an arithmetic number, because the mean of its divisors is an integer number (1975320).

Almost surely, 2^20011952 is an apocalyptic number.

It is an amenable number.

20011952 is a deficient number, since it is larger than the sum of its proper divisors (19494448).

20011952 is a wasteful number, since it uses less digits than its factorization.

20011952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23660 (or 23654 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 20011952 is about 4473.4720296432. The cubic root of 20011952 is about 271.4958220910.

Adding to 20011952 its reverse (25911002), we get a palindrome (45922954).

The spelling of 20011952 in words is "twenty million, eleven thousand, nine hundred fifty-two".