25426943 has 4 divisors (see below), whose sum is σ = 25499328. Its totient is φ = 25354560.

The previous prime is 25426931. The next prime is 25426957. The reversal of 25426943 is 34962452.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25426943 - 2⁴ = 25426927 is a prime.

It is a super-3 number, since 3×25426943³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25426963) 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 3 ways as a sum of consecutive naturals, for example, 35663 + ... + 36368.

It is an arithmetic number, because the mean of its divisors is an integer number (6374832).

Almost surely, 2^25426943 is an apocalyptic number.

25426943 is a deficient number, since it is larger than the sum of its proper divisors (72385).

25426943 is an equidigital number, since it uses as much as digits as its factorization.

25426943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72384.

The product of its digits is 51840, while the sum is 35.

The square root of 25426943 is about 5042.5135597240. The cubic root of 25426943 is about 294.0569058558.

The spelling of 25426943 in words is "twenty-five million, four hundred twenty-six thousand, nine hundred forty-three".