20255302 has 4 divisors (see below), whose sum is σ = 30382956. Its totient is φ = 10127650.

The previous prime is 20255299. The next prime is 20255303. The reversal of 20255302 is 20355202.

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

It is a super-2 number, since 2×20255302² = 820554518222408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20255302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20255303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5063824 + ... + 5063827.

It is an arithmetic number, because the mean of its divisors is an integer number (7595739).

Almost surely, 2^20255302 is an apocalyptic number.

20255302 is a deficient number, since it is larger than the sum of its proper divisors (10127654).

20255302 is a wasteful number, since it uses less digits than its factorization.

20255302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10127653.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 20255302 is about 4500.5890725548. The cubic root of 20255302 is about 272.5918754252.

The spelling of 20255302 in words is "twenty million, two hundred fifty-five thousand, three hundred two".