20249252 has 6 divisors (see below), whose sum is σ = 35436198. Its totient is φ = 10124624.

The previous prime is 20249237. The next prime is 20249263. The reversal of 20249252 is 25294202.

It can be written as a sum of positive squares in only one way, i.e., 17172736 + 3076516 = 4144^2 + 1754^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2531153 + ... + 2531160.

It is an arithmetic number, because the mean of its divisors is an integer number (5906033).

Almost surely, 2^20249252 is an apocalyptic number.

It is an amenable number.

20249252 is a deficient number, since it is larger than the sum of its proper divisors (15186946).

20249252 is a wasteful number, since it uses less digits than its factorization.

20249252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5062317 (or 5062315 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 20249252 is about 4499.9168881214. The cubic root of 20249252 is about 272.5647328188.

The spelling of 20249252 in words is "twenty million, two hundred forty-nine thousand, two hundred fifty-two".