26425139 has 16 divisors (see below), whose sum is σ = 29581440. Its totient is φ = 23448960.

The previous prime is 26425127. The next prime is 26425169. The reversal of 26425139 is 93152462.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 26425139 - 2⁸ = 26424883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26425169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36917 + ... + 37625.

It is an arithmetic number, because the mean of its divisors is an integer number (1848840).

Almost surely, 2^26425139 is an apocalyptic number.

26425139 is a deficient number, since it is larger than the sum of its proper divisors (3156301).

26425139 is a wasteful number, since it uses less digits than its factorization.

26425139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830.

The product of its digits is 12960, while the sum is 32.

The square root of 26425139 is about 5140.5387849913. The cubic root of 26425139 is about 297.8555934425.

The spelling of 26425139 in words is "twenty-six million, four hundred twenty-five thousand, one hundred thirty-nine".