25445000004 has 24 divisors (see below), whose sum is σ = 61953044160. Its totient is φ = 8112898464.

The previous prime is 25444999961. The next prime is 25445000069. The reversal of 25445000004 is 40000054452.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46095739 + ... + 46096290.

It is an arithmetic number, because the mean of its divisors is an integer number (2581376840).

Almost surely, 2^25445000004 is an apocalyptic number.

It is an amenable number.

25445000004 is an abundant number, since it is smaller than the sum of its proper divisors (36508044156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25445000004 is a wasteful number, since it uses less digits than its factorization.

25445000004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92192059 (or 92192057 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

Adding to 25445000004 its reverse (40000054452), we get a palindrome (65445054456).

The spelling of 25445000004 in words is "twenty-five billion, four hundred forty-five million, four", and thus it is an aban number.