31603053 has 8 divisors (see below), whose sum is σ = 42313216. Its totient is φ = 20980800.

The previous prime is 31603027. The next prime is 31603073. The reversal of 31603053 is 35030613.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31603053 - 2¹³ = 31594861 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 (31603073) 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, 21133 + ... + 22578.

It is an arithmetic number, because the mean of its divisors is an integer number (5289152).

Almost surely, 2^31603053 is an apocalyptic number.

It is an amenable number.

31603053 is a deficient number, since it is larger than the sum of its proper divisors (10710163).

31603053 is a wasteful number, since it uses less digits than its factorization.

31603053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43955.

The product of its (nonzero) digits is 810, while the sum is 21.

The square root of 31603053 is about 5621.6592746270. The cubic root of 31603053 is about 316.1620070044.

Adding to 31603053 its reverse (35030613), we get a palindrome (66633666).

The spelling of 31603053 in words is "thirty-one million, six hundred three thousand, fifty-three".