20252949 has 16 divisors (see below), whose sum is σ = 28943232. Its totient is φ = 12564288.

The previous prime is 20252941. The next prime is 20252959. The reversal of 20252949 is 94925202.

It is not a de Polignac number, because 20252949 - 2³ = 20252941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20252941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1414 + ... + 6519.

It is an arithmetic number, because the mean of its divisors is an integer number (1808952).

Almost surely, 2^20252949 is an apocalyptic number.

It is an amenable number.

20252949 is a deficient number, since it is larger than the sum of its proper divisors (8690283).

20252949 is a wasteful number, since it uses less digits than its factorization.

20252949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7996.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 20252949 is about 4500.3276547380. The cubic root of 20252949 is about 272.5813196125.

The spelling of 20252949 in words is "twenty million, two hundred fifty-two thousand, nine hundred forty-nine".