253166836 has 24 divisors (see below), whose sum is σ = 484949864. Its totient is φ = 114929280.

The previous prime is 253166833. The next prime is 253166857. The reversal of 253166836 is 638661352.

253166836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 12916836 + 240250000 = 3594^2 + 15500^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253166831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36735 + ... + 43078.

Almost surely, 2^253166836 is an apocalyptic number.

253166836 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

253166836 is a deficient number, since it is larger than the sum of its proper divisors (231783028).

253166836 is a wasteful number, since it uses less digits than its factorization.

253166836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79891 (or 79889 counting only the distinct ones).

The product of its digits is 155520, while the sum is 40.

The square root of 253166836 is about 15911.2173010113. The cubic root of 253166836 is about 632.6093472777.

The spelling of 253166836 in words is "two hundred fifty-three million, one hundred sixty-six thousand, eight hundred thirty-six".