524991249 has 12 divisors (see below), whose sum is σ = 758523636. Its totient is φ = 349900512.

The previous prime is 524991239. The next prime is 524991281. The reversal of 524991249 is 942199425.

It can be written as a sum of positive squares in 2 ways, for example, as 418488849 + 106502400 = 20457^2 + 10320^2 .

It is not a de Polignac number, because 524991249 - 2⁵ = 524991217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (524991209) 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, 51067 + ... + 60479.

It is an arithmetic number, because the mean of its divisors is an integer number (63210303).

Almost surely, 2^524991249 is an apocalyptic number.

It is an amenable number.

524991249 is a deficient number, since it is larger than the sum of its proper divisors (233532387).

524991249 is a wasteful number, since it uses less digits than its factorization.

524991249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15616 (or 15613 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 524991249 is about 22912.6875115077. The cubic root of 524991249 is about 806.7098407289.

The spelling of 524991249 in words is "five hundred twenty-four million, nine hundred ninety-one thousand, two hundred forty-nine".