31054563 has 32 divisors (see below), whose sum is σ = 50414400. Its totient is φ = 18805248.

The previous prime is 31054561. The next prime is 31054579. The reversal of 31054563 is 36545013.

It is not a de Polignac number, because 31054563 - 2¹ = 31054561 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (31054561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12145 + ... + 14477.

It is an arithmetic number, because the mean of its divisors is an integer number (1575450).

Almost surely, 2^31054563 is an apocalyptic number.

31054563 is a deficient number, since it is larger than the sum of its proper divisors (19359837).

31054563 is a wasteful number, since it uses less digits than its factorization.

31054563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2388 (or 2382 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 31054563 is about 5572.6621106972. The cubic root of 31054563 is about 314.3222616786.

Adding to 31054563 its reverse (36545013), we get a palindrome (67599576).

The spelling of 31054563 in words is "thirty-one million, fifty-four thousand, five hundred sixty-three".