53821236 has 48 divisors (see below), whose sum is σ = 147410816. Its totient is φ = 14961024.

The previous prime is 53821231. The next prime is 53821241. The reversal of 53821236 is 63212835.

It is an interprime number because it is at equal distance from previous prime (53821231) and next prime (53821241).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53821231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5551 + ... + 11766.

Almost surely, 2^53821236 is an apocalyptic number.

It is an amenable number.

53821236 is an abundant number, since it is smaller than the sum of its proper divisors (93589580).

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

53821236 is a wasteful number, since it uses less digits than its factorization.

53821236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17368 (or 17366 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 53821236 is about 7336.2957955633. The cubic root of 53821236 is about 377.5587640052.

The spelling of 53821236 in words is "fifty-three million, eight hundred twenty-one thousand, two hundred thirty-six".