531332505 has 24 divisors (see below), whose sum is σ = 1004702400. Its totient is φ = 257615520.

The previous prime is 531332497. The next prime is 531332513. The reversal of 531332505 is 505233135.

It is an interprime number because it is at equal distance from previous prime (531332497) and next prime (531332513).

It is not a de Polignac number, because 531332505 - 2³ = 531332497 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 536205 + ... + 537194.

It is an arithmetic number, because the mean of its divisors is an integer number (41862600).

Almost surely, 2^531332505 is an apocalyptic number.

531332505 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

531332505 is a deficient number, since it is larger than the sum of its proper divisors (473369895).

531332505 is a wasteful number, since it uses less digits than its factorization.

531332505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073421 (or 1073418 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 27.

The square root of 531332505 is about 23050.6508584899. The cubic root of 531332505 is about 809.9448750780.

The spelling of 531332505 in words is "five hundred thirty-one million, three hundred thirty-two thousand, five hundred five".