553531131 has 32 divisors (see below), whose sum is σ = 842392320. Its totient is φ = 359033472.

The previous prime is 553531129. The next prime is 553531159. The reversal of 553531131 is 131135355.

It is not a de Polignac number, because 553531131 - 2¹ = 553531129 is a prime.

It is a super-2 number, since 2×553531131² = 612793425972278322, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 553531095 and 553531104.

It is not an unprimeable number, because it can be changed into a prime (553531931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 355651 + ... + 357203.

It is an arithmetic number, because the mean of its divisors is an integer number (26324760).

Almost surely, 2^553531131 is an apocalyptic number.

553531131 is a deficient number, since it is larger than the sum of its proper divisors (288861189).

553531131 is a wasteful number, since it uses less digits than its factorization.

553531131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1912 (or 1906 counting only the distinct ones).

The product of its digits is 3375, while the sum is 27.

The square root of 553531131 is about 23527.2423160897. The cubic root of 553531131 is about 821.0709440540.

Adding to 553531131 its reverse (131135355), we get a palindrome (684666486).

The spelling of 553531131 in words is "five hundred fifty-three million, five hundred thirty-one thousand, one hundred thirty-one".