25154268049 has 8 divisors (see below), whose sum is σ = 25182638208. Its totient is φ = 25125917040.

The previous prime is 25154267993. The next prime is 25154268109. The reversal of 25154268049 is 94086245152.

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 25154268049 - 2¹⁷ = 25154136977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25154268649) 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, 5476744 + ... + 5481334.

It is an arithmetic number, because the mean of its divisors is an integer number (3147829776).

Almost surely, 2^25154268049 is an apocalyptic number.

It is an amenable number.

25154268049 is a deficient number, since it is larger than the sum of its proper divisors (28370159).

25154268049 is a wasteful number, since it uses less digits than its factorization.

25154268049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9575.

The product of its (nonzero) digits is 691200, while the sum is 46.

The spelling of 25154268049 in words is "twenty-five billion, one hundred fifty-four million, two hundred sixty-eight thousand, forty-nine".