26250551 has 4 divisors (see below), whose sum is σ = 26275704. Its totient is φ = 26225400.

The previous prime is 26250547. The next prime is 26250559. The reversal of 26250551 is 15505262.

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 26250551 - 2² = 26250547 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26250551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26250559) 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, 10940 + ... + 13121.

It is an arithmetic number, because the mean of its divisors is an integer number (6568926).

Almost surely, 2^26250551 is an apocalyptic number.

26250551 is a deficient number, since it is larger than the sum of its proper divisors (25153).

26250551 is a wasteful number, since it uses less digits than its factorization.

26250551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25152.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 26250551 is about 5123.5291547916. The cubic root of 26250551 is about 297.1981770528.

The spelling of 26250551 in words is "twenty-six million, two hundred fifty thousand, five hundred fifty-one".