25451004045 has 64 divisors (see below), whose sum is σ = 44576421120. Its totient is φ = 12349145088.

The previous prime is 25451004023. The next prime is 25451004053. The reversal of 25451004045 is 54040015452.

It is not a de Polignac number, because 25451004045 - 2¹¹ = 25451001997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1051641 + ... + 1075569.

It is an arithmetic number, because the mean of its divisors is an integer number (696506580).

Almost surely, 2^25451004045 is an apocalyptic number.

It is an amenable number.

25451004045 is a deficient number, since it is larger than the sum of its proper divisors (19125417075).

25451004045 is a wasteful number, since it uses less digits than its factorization.

25451004045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24094.

The product of its (nonzero) digits is 16000, while the sum is 30.

Adding to 25451004045 its reverse (54040015452), we get a palindrome (79491019497).

The spelling of 25451004045 in words is "twenty-five billion, four hundred fifty-one million, four thousand, forty-five".