25463513426 has 16 divisors (see below), whose sum is σ = 41212340568. Its totient is φ = 11729827200.

The previous prime is 25463513333. The next prime is 25463513443. The reversal of 25463513426 is 62431536452.

It can be written as a sum of positive squares in 4 ways, for example, as 19595800225 + 5867713201 = 139985^2 + 76601^2 .

It is a Curzon 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, 926345 + ... + 953436.

Almost surely, 2^25463513426 is an apocalyptic number.

25463513426 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

25463513426 is a deficient number, since it is larger than the sum of its proper divisors (15748827142).

25463513426 is a wasteful number, since it uses less digits than its factorization.

25463513426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1880317.

The product of its digits is 518400, while the sum is 41.

The spelling of 25463513426 in words is "twenty-five billion, four hundred sixty-three million, five hundred thirteen thousand, four hundred twenty-six".