20532254 has 4 divisors (see below), whose sum is σ = 30798384. Its totient is φ = 10266126.

The previous prime is 20532233. The next prime is 20532263. The reversal of 20532254 is 45223502.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5133062 + ... + 5133065.

It is an arithmetic number, because the mean of its divisors is an integer number (7699596).

Almost surely, 2^20532254 is an apocalyptic number.

20532254 is a deficient number, since it is larger than the sum of its proper divisors (10266130).

20532254 is a wasteful number, since it uses less digits than its factorization.

20532254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10266129.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 20532254 is about 4531.2530275852. The cubic root of 20532254 is about 273.8286441685.

Adding to 20532254 its reverse (45223502), we get a palindrome (65755756).

The spelling of 20532254 in words is "twenty million, five hundred thirty-two thousand, two hundred fifty-four".