25515055351345 has 8 divisors (see below), whose sum is σ = 34992075910464. Its totient is φ = 17496037955184.

The previous prime is 25515055351337. The next prime is 25515055351391. The reversal of 25515055351345 is 54315355051552.

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 25515055351345 - 2³ = 25515055351337 is a prime.

It is a Duffinian 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, 364500790699 + ... + 364500790768.

It is an arithmetic number, because the mean of its divisors is an integer number (4374009488808).

Almost surely, 2^{25515055351345} is an apocalyptic number.

It is an amenable number.

25515055351345 is a deficient number, since it is larger than the sum of its proper divisors (9477020559119).

25515055351345 is an equidigital number, since it uses as much as digits as its factorization.

25515055351345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729001581479.

The product of its (nonzero) digits is 5625000, while the sum is 49.

The spelling of 25515055351345 in words is "twenty-five trillion, five hundred fifteen billion, fifty-five million, three hundred fifty-one thousand, three hundred forty-five".