25461253145 has 8 divisors (see below), whose sum is σ = 32161583040. Its totient is φ = 19296949680.

The previous prime is 25461253133. The next prime is 25461253151. The reversal of 25461253145 is 54135216452.

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

It is not a de Polignac number, because 25461253145 - 2¹² = 25461249049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25461253099 and 25461253108.

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, 134006501 + ... + 134006690.

It is an arithmetic number, because the mean of its divisors is an integer number (4020197880).

Almost surely, 2^25461253145 is an apocalyptic number.

It is an amenable number.

25461253145 is a deficient number, since it is larger than the sum of its proper divisors (6700329895).

25461253145 is a wasteful number, since it uses less digits than its factorization.

25461253145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268013215.

The product of its digits is 144000, while the sum is 38.

Adding to 25461253145 its reverse (54135216452), we get a palindrome (79596469597).

The spelling of 25461253145 in words is "twenty-five billion, four hundred sixty-one million, two hundred fifty-three thousand, one hundred forty-five".