5631587903 has 4 divisors (see below), whose sum is σ = 5633369280. Its totient is φ = 5629806528.

The previous prime is 5631587887. The next prime is 5631587911. The reversal of 5631587903 is 3097851365.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5631587903 - 2⁴ = 5631587887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5631587953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 885938 + ... + 892271.

It is an arithmetic number, because the mean of its divisors is an integer number (1408342320).

Almost surely, 2^5631587903 is an apocalyptic number.

5631587903 is a deficient number, since it is larger than the sum of its proper divisors (1781377).

5631587903 is a wasteful number, since it uses less digits than its factorization.

5631587903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1781376.

The product of its (nonzero) digits is 680400, while the sum is 47.

The square root of 5631587903 is about 75043.9065014609. The cubic root of 5631587903 is about 1779.1406767226.

The spelling of 5631587903 in words is "five billion, six hundred thirty-one million, five hundred eighty-seven thousand, nine hundred three".