20735254 has 4 divisors (see below), whose sum is σ = 31102884. Its totient is φ = 10367626.

The previous prime is 20735201. The next prime is 20735293. The reversal of 20735254 is 45253702.

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, 5183812 + ... + 5183815.

It is an arithmetic number, because the mean of its divisors is an integer number (7775721).

Almost surely, 2^20735254 is an apocalyptic number.

20735254 is a deficient number, since it is larger than the sum of its proper divisors (10367630).

20735254 is a wasteful number, since it uses less digits than its factorization.

20735254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10367629.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 20735254 is about 4553.5979181302. The cubic root of 20735254 is about 274.7281235868.

Adding to 20735254 its reverse (45253702), we get a palindrome (65988956).

The spelling of 20735254 in words is "twenty million, seven hundred thirty-five thousand, two hundred fifty-four".