531650745 has 12 divisors (see below), whose sum is σ = 921528036. Its totient is φ = 283547040.

The previous prime is 531650737. The next prime is 531650747. The reversal of 531650745 is 547056135.

531650745 is a `hidden beast` number, since 531 + 6 + 50 + 74 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 75272976 + 456377769 = 8676^2 + 21363^2 .

It is not a de Polignac number, because 531650745 - 2³ = 531650737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (531650747) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5907186 + ... + 5907275.

It is an arithmetic number, because the mean of its divisors is an integer number (76794003).

Almost surely, 2^531650745 is an apocalyptic number.

It is an amenable number.

531650745 is a deficient number, since it is larger than the sum of its proper divisors (389877291).

531650745 is a wasteful number, since it uses less digits than its factorization.

531650745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11814472 (or 11814469 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

The square root of 531650745 is about 23057.5528840335. The cubic root of 531650745 is about 810.1065474839.

The spelling of 531650745 in words is "five hundred thirty-one million, six hundred fifty thousand, seven hundred forty-five".