25747367855 has 16 divisors (see below), whose sum is σ = 33730293024. Its totient is φ = 18711665280.

The previous prime is 25747367809. The next prime is 25747367873. The reversal of 25747367855 is 55876374752.

It is not a de Polignac number, because 25747367855 - 2¹⁰ = 25747366831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25747367794 and 25747367803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94964 + ... + 245993.

It is an arithmetic number, because the mean of its divisors is an integer number (2108143314).

Almost surely, 2^25747367855 is an apocalyptic number.

25747367855 is a deficient number, since it is larger than the sum of its proper divisors (7982925169).

25747367855 is a wasteful number, since it uses less digits than its factorization.

25747367855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342346.

The product of its digits is 49392000, while the sum is 59.

The spelling of 25747367855 in words is "twenty-five billion, seven hundred forty-seven million, three hundred sixty-seven thousand, eight hundred fifty-five".