25211678063 has 24 divisors (see below), whose sum is σ = 29814863616. Its totient is φ = 21133351200.

The previous prime is 25211678021. The next prime is 25211678071. The reversal of 25211678063 is 36087611252.

It is not a de Polignac number, because 25211678063 - 2²⁶ = 25144569199 is a prime.

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 25211678063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25211678263) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1798106 + ... + 1812072.

It is an arithmetic number, because the mean of its divisors is an integer number (1242285984).

Almost surely, 2^25211678063 is an apocalyptic number.

25211678063 is a deficient number, since it is larger than the sum of its proper divisors (4603185553).

25211678063 is a wasteful number, since it uses less digits than its factorization.

25211678063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14975 (or 14962 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 25211678063 in words is "twenty-five billion, two hundred eleven million, six hundred seventy-eight thousand, sixty-three".