25044521042 has 8 divisors (see below), whose sum is σ = 37569621756. Its totient is φ = 12521313792.

The previous prime is 25044521027. The next prime is 25044521069. The reversal of 25044521042 is 24012544052.

It can be written as a sum of positive squares in 2 ways, for example, as 24995926201 + 48594841 = 158101^2 + 6971^2 .

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 = 25044520996 and 25044521014.

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, 439823 + ... + 493490.

Almost surely, 2^25044521042 is an apocalyptic number.

25044521042 is a deficient number, since it is larger than the sum of its proper divisors (12525100714).

25044521042 is a wasteful number, since it uses less digits than its factorization.

25044521042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946732.

The product of its (nonzero) digits is 12800, while the sum is 29.

The spelling of 25044521042 in words is "twenty-five billion, forty-four million, five hundred twenty-one thousand, forty-two".