204262425531 has 24 divisors (see below), whose sum is σ = 309725445120. Its totient is φ = 129548602800.

The previous prime is 204262425443. The next prime is 204262425559. The reversal of 204262425531 is 135524262402.

204262425531 is a `hidden beast` number, since 2 + 0 + 4 + 2 + 62 + 42 + 553 + 1 = 666.

It is not a de Polignac number, because 204262425531 - 2²⁶ = 204195316667 is a prime.

It is a super-2 number, since 2×204262425531² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (204262423531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6187975 + ... + 6220896.

It is an arithmetic number, because the mean of its divisors is an integer number (12905226880).

Almost surely, 2^204262425531 is an apocalyptic number.

204262425531 is a deficient number, since it is larger than the sum of its proper divisors (105463019589).

204262425531 is a wasteful number, since it uses less digits than its factorization.

204262425531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12408967 (or 12408964 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 204262425531 its reverse (135524262402), we get a palindrome (339786687933).

The spelling of 204262425531 in words is "two hundred four billion, two hundred sixty-two million, four hundred twenty-five thousand, five hundred thirty-one".