25450544245 has 16 divisors (see below), whose sum is σ = 35057374848. Its totient is φ = 17374916160.

The previous prime is 25450544243. The next prime is 25450544261. The reversal of 25450544245 is 54244505452.

It is not a de Polignac number, because 25450544245 - 2¹ = 25450544243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25450544198 and 25450544207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25450544243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1593726 + ... + 1609615.

It is an arithmetic number, because the mean of its divisors is an integer number (2191085928).

Almost surely, 2^25450544245 is an apocalyptic number.

It is an amenable number.

25450544245 is a deficient number, since it is larger than the sum of its proper divisors (9606830603).

25450544245 is a wasteful number, since it uses less digits than its factorization.

25450544245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3203580.

The product of its (nonzero) digits is 640000, while the sum is 40.

The spelling of 25450544245 in words is "twenty-five billion, four hundred fifty million, five hundred forty-four thousand, two hundred forty-five".