25145415455 has 8 divisors (see below), whose sum is σ = 30189696432. Its totient is φ = 20106200448.

The previous prime is 25145415443. The next prime is 25145415509. The reversal of 25145415455 is 55451454152.

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

It is a cyclic number.

It is not a de Polignac number, because 25145415455 - 2⁸ = 25145415199 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 1255562 + ... + 1275431.

It is an arithmetic number, because the mean of its divisors is an integer number (3773712054).

Almost surely, 2^25145415455 is an apocalyptic number.

25145415455 is a deficient number, since it is larger than the sum of its proper divisors (5044280977).

25145415455 is a wasteful number, since it uses less digits than its factorization.

25145415455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2532985.

The product of its digits is 400000, while the sum is 41.

The spelling of 25145415455 in words is "twenty-five billion, one hundred forty-five million, four hundred fifteen thousand, four hundred fifty-five".