25400026 has 8 divisors (see below), whose sum is σ = 38374560. Its totient is φ = 12608508.

The previous prime is 25400021. The next prime is 25400047. The reversal of 25400026 is 62000452.

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

It is a super-2 number, since 2×25400026² = 1290322641601352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25399976 and 25400012.

It is not an unprimeable number, because it can be changed into a prime (25400021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45406 + ... + 45961.

It is an arithmetic number, because the mean of its divisors is an integer number (4796820).

Almost surely, 2^25400026 is an apocalyptic number.

25400026 is a deficient number, since it is larger than the sum of its proper divisors (12974534).

25400026 is a wasteful number, since it uses less digits than its factorization.

25400026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91508.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 25400026 is about 5039.8438467873. The cubic root of 25400026 is about 293.9531061925.

Adding to 25400026 its reverse (62000452), we get a palindrome (87400478).

The spelling of 25400026 in words is "twenty-five million, four hundred thousand, twenty-six".