531089949 has 24 divisors (see below), whose sum is σ = 770538720. Its totient is φ = 323436672.

The previous prime is 531089821. The next prime is 531089959. The reversal of 531089949 is 949980135.

It is not a de Polignac number, because 531089949 - 2⁷ = 531089821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 531089898 and 531089907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531089959) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1696617 + ... + 1696929.

It is an arithmetic number, because the mean of its divisors is an integer number (32105780).

Almost surely, 2^531089949 is an apocalyptic number.

It is an amenable number.

531089949 is a deficient number, since it is larger than the sum of its proper divisors (239448771).

531089949 is a wasteful number, since it uses less digits than its factorization.

531089949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781 (or 468 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 48.

The square root of 531089949 is about 23045.3888880184. The cubic root of 531089949 is about 809.8216083292.

It can be divided in two parts, 5310 and 89949, that added together give a palindrome (95259).

The spelling of 531089949 in words is "five hundred thirty-one million, eighty-nine thousand, nine hundred forty-nine".