20187052 has 12 divisors (see below), whose sum is σ = 36282400. Its totient is φ = 9820656.

The previous prime is 20187043. The next prime is 20187059. The reversal of 20187052 is 25078102.

It is not an unprimeable number, because it can be changed into a prime (20187059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68052 + ... + 68347.

Almost surely, 2^20187052 is an apocalyptic number.

It is an amenable number.

20187052 is a deficient number, since it is larger than the sum of its proper divisors (16095348).

20187052 is a wasteful number, since it uses less digits than its factorization.

20187052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136440 (or 136438 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 20187052 is about 4493.0003338526. Note that the first 3 decimals coincide. The cubic root of 20187052 is about 272.2853658758.

The spelling of 20187052 in words is "twenty million, one hundred eighty-seven thousand, fifty-two".