25343513530 has 8 divisors (see below), whose sum is σ = 45618324372. Its totient is φ = 10137405408.

The previous prime is 25343513513. The next prime is 25343513537. The reversal of 25343513530 is 3531534352.

It can be written as a sum of positive squares in 2 ways, for example, as 21859326801 + 3484186729 = 147849^2 + 59027^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (25343513537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1267175667 + ... + 1267175686.

Almost surely, 2^25343513530 is an apocalyptic number.

25343513530 is a deficient number, since it is larger than the sum of its proper divisors (20274810842).

25343513530 is a wasteful number, since it uses less digits than its factorization.

25343513530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2534351360.

The product of its (nonzero) digits is 81000, while the sum is 34.

The spelling of 25343513530 in words is "twenty-five billion, three hundred forty-three million, five hundred thirteen thousand, five hundred thirty".