20252902 has 8 divisors (see below), whose sum is σ = 30403296. Its totient is φ = 10118472.

The previous prime is 20252891. The next prime is 20252923. The reversal of 20252902 is 20925202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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, 33 + ... + 6364.

It is an arithmetic number, because the mean of its divisors is an integer number (3800412).

Almost surely, 2^20252902 is an apocalyptic number.

20252902 is a deficient number, since it is larger than the sum of its proper divisors (10150394).

20252902 is a wasteful number, since it uses less digits than its factorization.

20252902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7982.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 20252902 is about 4500.3224328930. The cubic root of 20252902 is about 272.5811087571.

The spelling of 20252902 in words is "twenty million, two hundred fifty-two thousand, nine hundred two".