47553863 has 8 divisors (see below), whose sum is σ = 55456800. Its totient is φ = 40760160.

The previous prime is 47553859. The next prime is 47553871. The reversal of 47553863 is 36835574.

It is not a de Polignac number, because 47553863 - 2² = 47553859 is a prime.

It is a super-2 number, since 2×47553863² = 4522739772445538, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47553863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47556863) 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, 68978 + ... + 69663.

It is an arithmetic number, because the mean of its divisors is an integer number (6932100).

Almost surely, 2^47553863 is an apocalyptic number.

47553863 is a deficient number, since it is larger than the sum of its proper divisors (7902937).

47553863 is an equidigital number, since it uses as much as digits as its factorization.

47553863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138662 (or 138648 counting only the distinct ones).

The product of its digits is 302400, while the sum is 41.

The square root of 47553863 is about 6895.9309016260. The cubic root of 47553863 is about 362.2946610358.

The spelling of 47553863 in words is "forty-seven million, five hundred fifty-three thousand, eight hundred sixty-three".