25401426 has 8 divisors (see below), whose sum is σ = 50802864. Its totient is φ = 8467140.

The previous prime is 25401391. The next prime is 25401443. The reversal of 25401426 is 62410452.

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

25401426 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25401396 and 25401405.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2116780 + ... + 2116791.

It is an arithmetic number, because the mean of its divisors is an integer number (6350358).

Almost surely, 2^25401426 is an apocalyptic number.

25401426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25401426 is a wasteful number, since it uses less digits than its factorization.

25401426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4233576.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 25401426 is about 5039.9827380657. The cubic root of 25401426 is about 293.9585068010.

Adding to 25401426 its reverse (62410452), we get a palindrome (87811878).

The spelling of 25401426 in words is "twenty-five million, four hundred one thousand, four hundred twenty-six".