20155152 has 40 divisors (see below), whose sum is σ = 52228800. Its totient is φ = 6697600.

The previous prime is 20155147. The next prime is 20155159. The reversal of 20155152 is 25155102.

It is not an unprimeable number, because it can be changed into a prime (20155159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28402 + ... + 29102.

It is an arithmetic number, because the mean of its divisors is an integer number (1305720).

Almost surely, 2^20155152 is an apocalyptic number.

It is an amenable number.

20155152 is an abundant number, since it is smaller than the sum of its proper divisors (32073648).

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

20155152 is a wasteful number, since it uses less digits than its factorization.

20155152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311 (or 1305 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 20155152 is about 4489.4489639598. The cubic root of 20155152 is about 272.1418665938.

The spelling of 20155152 in words is "twenty million, one hundred fifty-five thousand, one hundred fifty-two".