25000255782449 has 8 divisors (see below), whose sum is σ = 25081592833920. Its totient is φ = 24918934278096.

The previous prime is 25000255782433. The next prime is 25000255782451. The reversal of 25000255782449 is 94428755200052.

It is a happy number.

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 25000255782449 - 2⁴ = 25000255782433 is a prime.

It is a super-2 number, since 2×25000255782449² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25000255782449.

It is not an unprimeable number, because it can be changed into a prime (25000255782149) 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, 661139 + ... + 7101944.

It is an arithmetic number, because the mean of its divisors is an integer number (3135199104240).

Almost surely, 2^{25000255782449} is an apocalyptic number.

It is an amenable number.

25000255782449 is a deficient number, since it is larger than the sum of its proper divisors (81337051471).

25000255782449 is a wasteful number, since it uses less digits than its factorization.

25000255782449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7773559.

The product of its (nonzero) digits is 8064000, while the sum is 53.

The spelling of 25000255782449 in words is "twenty-five trillion, two hundred fifty-five million, seven hundred eighty-two thousand, four hundred forty-nine".