531061375 has 48 divisors (see below), whose sum is σ = 749556288. Its totient is φ = 374774400.

The previous prime is 531061357. The next prime is 531061379. The reversal of 531061375 is 573160135.

It is not a de Polignac number, because 531061375 - 2⁷ = 531061247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531061379) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 485329 + ... + 486421.

It is an arithmetic number, because the mean of its divisors is an integer number (15615756).

Almost surely, 2^531061375 is an apocalyptic number.

531061375 is a deficient number, since it is larger than the sum of its proper divisors (218494913).

531061375 is a wasteful number, since it uses less digits than its factorization.

531061375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157 (or 1134 counting only the distinct ones).

The product of its (nonzero) digits is 9450, while the sum is 31.

The square root of 531061375 is about 23044.7689291952. The cubic root of 531061375 is about 809.8070845762.

The spelling of 531061375 in words is "five hundred thirty-one million, sixty-one thousand, three hundred seventy-five".