25405700426 has 8 divisors (see below), whose sum is σ = 38110812960. Its totient is φ = 12702096108.

The previous prime is 25405700423. The next prime is 25405700477. The reversal of 25405700426 is 62400750452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×25405700426² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25405700423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333956 + ... + 402911.

It is an arithmetic number, because the mean of its divisors is an integer number (4763851620).

Almost surely, 2^25405700426 is an apocalyptic number.

25405700426 is a deficient number, since it is larger than the sum of its proper divisors (12705112534).

25405700426 is a wasteful number, since it uses less digits than its factorization.

25405700426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754108.

The product of its (nonzero) digits is 67200, while the sum is 35.

The spelling of 25405700426 in words is "twenty-five billion, four hundred five million, seven hundred thousand, four hundred twenty-six".