25140251255 has 8 divisors (see below), whose sum is σ = 34478058912. Its totient is φ = 17239029408.

The previous prime is 25140251251. The next prime is 25140251327. The reversal of 25140251255 is 55215204152.

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 25140251255 - 2² = 25140251251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25140251251) 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, 359146412 + ... + 359146481.

It is an arithmetic number, because the mean of its divisors is an integer number (4309757364).

Almost surely, 2^25140251255 is an apocalyptic number.

25140251255 is a deficient number, since it is larger than the sum of its proper divisors (9337807657).

25140251255 is an equidigital number, since it uses as much as digits as its factorization.

25140251255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718292905.

The product of its (nonzero) digits is 20000, while the sum is 32.

The spelling of 25140251255 in words is "twenty-five billion, one hundred forty million, two hundred fifty-one thousand, two hundred fifty-five".