31042553 has 8 divisors (see below), whose sum is σ = 31353600. Its totient is φ = 30733488.

The previous prime is 31042541. The next prime is 31042567. The reversal of 31042553 is 35524013.

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

It is a cyclic number.

It is not a de Polignac number, because 31042553 - 2⁴ = 31042537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31042573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64568 + ... + 65046.

It is an arithmetic number, because the mean of its divisors is an integer number (3919200).

Almost surely, 2^31042553 is an apocalyptic number.

It is an amenable number.

31042553 is a deficient number, since it is larger than the sum of its proper divisors (311047).

31042553 is a wasteful number, since it uses less digits than its factorization.

31042553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 31042553 is about 5571.5844245600. The cubic root of 31042553 is about 314.2817362641.

Adding to 31042553 its reverse (35524013), we get a palindrome (66566566).

The spelling of 31042553 in words is "thirty-one million, forty-two thousand, five hundred fifty-three".