20157652 has 12 divisors (see below), whose sum is σ = 35342496. Its totient is φ = 10059800.

The previous prime is 20157647. The next prime is 20157653. The reversal of 20157652 is 25675102.

It is a self number, because there is not a number n which added to its sum of digits gives 20157652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20157653) 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, 2224 + ... + 6727.

It is an arithmetic number, because the mean of its divisors is an integer number (2945208).

Almost surely, 2^20157652 is an apocalyptic number.

It is an amenable number.

20157652 is a deficient number, since it is larger than the sum of its proper divisors (15184844).

20157652 is a wasteful number, since it uses less digits than its factorization.

20157652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9518 (or 9516 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 20157652 is about 4489.7273859334. The cubic root of 20157652 is about 272.1531180849.

The spelling of 20157652 in words is "twenty million, one hundred fifty-seven thousand, six hundred fifty-two".