20015152 has 40 divisors (see below), whose sum is σ = 40863456. Its totient is φ = 9478656.

The previous prime is 20015147. The next prime is 20015173. The reversal of 20015152 is 25151002.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 50218 + ... + 50614.

Almost surely, 2^20015152 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 20015152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20431728).

20015152 is an abundant number, since it is smaller than the sum of its proper divisors (20848304).

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

20015152 is a wasteful number, since it uses less digits than its factorization.

20015152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565 (or 559 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 20015152 is about 4473.8296793687. The cubic root of 20015152 is about 271.5102924490.

Adding to 20015152 its reverse (25151002), we get a palindrome (45166154).

The spelling of 20015152 in words is "twenty million, fifteen thousand, one hundred fifty-two".