26265251 has 4 divisors (see below), whose sum is σ = 26472192. Its totient is φ = 26058312.

The previous prime is 26265233. The next prime is 26265257. The reversal of 26265251 is 15256262.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26265251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26265257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103280 + ... + 103533.

It is an arithmetic number, because the mean of its divisors is an integer number (6618048).

Almost surely, 2^26265251 is an apocalyptic number.

26265251 is a deficient number, since it is larger than the sum of its proper divisors (206941).

26265251 is a wasteful number, since it uses less digits than its factorization.

26265251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206940.

The product of its digits is 7200, while the sum is 29.

The square root of 26265251 is about 5124.9635120652. The cubic root of 26265251 is about 297.2536425293.

It can be divided in two parts, 2626 and 5251, that multiplied together give a triangular number (13789126 = T₅₂₅₁).

The spelling of 26265251 in words is "twenty-six million, two hundred sixty-five thousand, two hundred fifty-one".