52781336 has 16 divisors (see below), whose sum is σ = 100321800. Its totient is φ = 26028864.

The previous prime is 52781321. The next prime is 52781347. The reversal of 52781336 is 63318725.

It is a junction number, because it is equal to n+sod(n) for n = 52781296 and 52781305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44606 + ... + 45773.

Almost surely, 2^52781336 is an apocalyptic number.

It is an amenable number.

52781336 is a deficient number, since it is larger than the sum of its proper divisors (47540464).

52781336 is a wasteful number, since it uses less digits than its factorization.

52781336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90458 (or 90454 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The square root of 52781336 is about 7265.0764620890. The cubic root of 52781336 is about 375.1112819366. Note that the first 3 decimals are identical.

The spelling of 52781336 in words is "fifty-two million, seven hundred eighty-one thousand, three hundred thirty-six".