25430513342522 has 8 divisors (see below), whose sum is σ = 38495731206900. Its totient is φ = 12598602940224.

The previous prime is 25430513342501. The next prime is 25430513342551. The reversal of 25430513342522 is 22524331503452.

It can be written as a sum of positive squares in 2 ways, for example, as 20215086062161 + 5215427280361 = 4496119^2 + 2283731^2 .

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

It is a super-2 number, since 2×25430513342522² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25430513342522.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58326865247 + ... + 58326865682.

Almost surely, 2^{25430513342522} is an apocalyptic number.

25430513342522 is a deficient number, since it is larger than the sum of its proper divisors (13065217864378).

25430513342522 is a wasteful number, since it uses less digits than its factorization.

25430513342522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116653731040.

The product of its (nonzero) digits is 864000, while the sum is 41.

Adding to 25430513342522 its reverse (22524331503452), we get a palindrome (47954844845974).

The spelling of 25430513342522 in words is "twenty-five trillion, four hundred thirty billion, five hundred thirteen million, three hundred forty-two thousand, five hundred twenty-two".