25411400397 has 12 divisors (see below), whose sum is σ = 36830634204. Its totient is φ = 16883112960.

The previous prime is 25411400393. The next prime is 25411400407. The reversal of 25411400397 is 79300411452.

25411400397 is a `hidden beast` number, since 254 + 1 + 14 + 0 + 0 + 397 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 22322152836 + 3089247561 = 149406^2 + 55581^2 .

It is not a de Polignac number, because 25411400397 - 2² = 25411400393 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25411400393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4815604 + ... + 4820877.

It is an arithmetic number, because the mean of its divisors is an integer number (3069219517).

Almost surely, 2^25411400397 is an apocalyptic number.

It is an amenable number.

25411400397 is a deficient number, since it is larger than the sum of its proper divisors (11419233807).

25411400397 is a wasteful number, since it uses less digits than its factorization.

25411400397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9636780 (or 9636777 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 25411400397 in words is "twenty-five billion, four hundred eleven million, four hundred thousand, three hundred ninety-seven".