25667463425 has 24 divisors (see below), whose sum is σ = 32194876896. Its totient is φ = 20297571840.

The previous prime is 25667463407. The next prime is 25667463449. The reversal of 25667463425 is 52436476652.

It is not a de Polignac number, because 25667463425 - 2⁶ = 25667463361 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2135282 + ... + 2147268.

It is an arithmetic number, because the mean of its divisors is an integer number (1341453204).

Almost surely, 2^25667463425 is an apocalyptic number.

25667463425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25667463425 is a deficient number, since it is larger than the sum of its proper divisors (6527413471).

25667463425 is a wasteful number, since it uses less digits than its factorization.

25667463425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12977 (or 12972 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 50.

The spelling of 25667463425 in words is "twenty-five billion, six hundred sixty-seven million, four hundred sixty-three thousand, four hundred twenty-five".