25002442145 has 8 divisors (see below), whose sum is σ = 30013981440. Its totient is φ = 19994586480.

The previous prime is 25002442141. The next prime is 25002442177. The reversal of 25002442145 is 54124420052.

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

It is not a de Polignac number, because 25002442145 - 2² = 25002442141 is a prime.

It is a super-2 number, since 2×25002442145² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25002442141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 905951 + ... + 933140.

It is an arithmetic number, because the mean of its divisors is an integer number (3751747680).

Almost surely, 2^25002442145 is an apocalyptic number.

It is an amenable number.

25002442145 is a deficient number, since it is larger than the sum of its proper divisors (5011539295).

25002442145 is a wasteful number, since it uses less digits than its factorization.

25002442145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1841815.

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

Adding to 25002442145 its reverse (54124420052), we get a palindrome (79126862197).

The spelling of 25002442145 in words is "twenty-five billion, two million, four hundred forty-two thousand, one hundred forty-five".