20253476 has 6 divisors (see below), whose sum is σ = 35443590. Its totient is φ = 10126736.

The previous prime is 20253469. The next prime is 20253521. The reversal of 20253476 is 67435202.

It can be written as a sum of positive squares in only one way, i.e., 15413476 + 4840000 = 3926^2 + 2200^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2531681 + ... + 2531688.

It is an arithmetic number, because the mean of its divisors is an integer number (5907265).

Almost surely, 2^20253476 is an apocalyptic number.

It is an amenable number.

20253476 is a deficient number, since it is larger than the sum of its proper divisors (15190114).

20253476 is a wasteful number, since it uses less digits than its factorization.

20253476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5063373 (or 5063371 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 20253476 is about 4500.3862056495. The cubic root of 20253476 is about 272.5836838626.

Adding to 20253476 its reverse (67435202), we get a palindrome (87688678).

The spelling of 20253476 in words is "twenty million, two hundred fifty-three thousand, four hundred seventy-six".