20252650 has 48 divisors (see below), whose sum is σ = 42907968. Its totient is φ = 7040000.

The previous prime is 20252611. The next prime is 20252663. The reversal of 20252650 is 5625202.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (22).

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 in 23 ways as a sum of consecutive naturals, for example, 11850 + ... + 13450.

It is an arithmetic number, because the mean of its divisors is an integer number (893916).

Almost surely, 2^20252650 is an apocalyptic number.

20252650 is an abundant number, since it is smaller than the sum of its proper divisors (22655318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20252650 is a wasteful number, since it uses less digits than its factorization.

20252650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1647 (or 1642 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 20252650 is about 4500.2944348120. The cubic root of 20252650 is about 272.5799782076.

Adding to 20252650 its reverse (5625202), we get a palindrome (25877852).

It can be divided in two parts, 20252 and 650, that added together give a palindrome (20902).

The spelling of 20252650 in words is "twenty million, two hundred fifty-two thousand, six hundred fifty".