532640245 has 16 divisors (see below), whose sum is σ = 666059760. Its totient is φ = 408400384.

The previous prime is 532640239. The next prime is 532640257. The reversal of 532640245 is 542046235.

It can be written as a sum of positive squares in 8 ways, for example, as 6671889 + 525968356 = 2583^2 + 22934^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-532640245 is a prime.

It is a super-3 number, since 3×532640245³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6459 + ... + 33271.

It is an arithmetic number, because the mean of its divisors is an integer number (41628735).

Almost surely, 2^532640245 is an apocalyptic number.

It is an amenable number.

532640245 is a deficient number, since it is larger than the sum of its proper divisors (133419515).

532640245 is a wasteful number, since it uses less digits than its factorization.

532640245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26984.

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 532640245 is about 23079.0000866589. Note that the first 4 decimals coincide. The cubic root of 532640245 is about 810.6088218568.

The spelling of 532640245 in words is "five hundred thirty-two million, six hundred forty thousand, two hundred forty-five".