53136850 has 24 divisors (see below), whose sum is σ = 106438500. Its totient is φ = 19619520.

The previous prime is 53136833. The next prime is 53136893. The reversal of 53136850 is 5863135.

It can be written as a sum of positive squares in 6 ways, for example, as 994009 + 52142841 = 997^2 + 7221^2 .

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, 40225 + ... + 41524.

Almost surely, 2^53136850 is an apocalyptic number.

53136850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

53136850 is an abundant number, since it is smaller than the sum of its proper divisors (53301650).

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

53136850 is a wasteful number, since it uses less digits than its factorization.

53136850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81774 (or 81769 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 53136850 is about 7289.5027265239. The cubic root of 53136850 is about 375.9515980022.

Adding to 53136850 its reverse (5863135), we get a palindrome (58999985).

The spelling of 53136850 in words is "fifty-three million, one hundred thirty-six thousand, eight hundred fifty".