25254811042 has 8 divisors (see below), whose sum is σ = 37920993516. Its totient is φ = 12614479872.

The previous prime is 25254811019. The next prime is 25254811079. The reversal of 25254811042 is 24011845252.

It can be written as a sum of positive squares in 2 ways, for example, as 25014901921 + 239909121 = 158161^2 + 15489^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 25254810989 and 25254811007.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6460383 + ... + 6464290.

Almost surely, 2^25254811042 is an apocalyptic number.

25254811042 is a deficient number, since it is larger than the sum of its proper divisors (12666182474).

25254811042 is a wasteful number, since it uses less digits than its factorization.

25254811042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12925652.

The product of its (nonzero) digits is 25600, while the sum is 34.

The spelling of 25254811042 in words is "twenty-five billion, two hundred fifty-four million, eight hundred eleven thousand, forty-two".