20545254 has 24 divisors (see below), whose sum is σ = 44859672. Its totient is φ = 6795360.

The previous prime is 20545247. The next prime is 20545267. The reversal of 20545254 is 45254502.

20545254 is a `hidden beast` number, since 205 + 452 + 5 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1999 + ... + 6714.

It is an arithmetic number, because the mean of its divisors is an integer number (1869153).

Almost surely, 2^20545254 is an apocalyptic number.

20545254 is an abundant number, since it is smaller than the sum of its proper divisors (24314418).

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

20545254 is a wasteful number, since it uses less digits than its factorization.

20545254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8852 (or 8849 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 20545254 is about 4532.6872823966. The cubic root of 20545254 is about 273.8864235263.

Adding to 20545254 its reverse (45254502), we get a palindrome (65799756).

The spelling of 20545254 in words is "twenty million, five hundred forty-five thousand, two hundred fifty-four".