25290767 has 4 divisors (see below), whose sum is σ = 26621880. Its totient is φ = 23959656.

The previous prime is 25290757. The next prime is 25290773. The reversal of 25290767 is 76709252.

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 25290767 - 2²⁴ = 8513551 is a prime.

It is an alternating number because its digits alternate between even and odd.

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 25290767.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25290737) 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, 665528 + ... + 665565.

It is an arithmetic number, because the mean of its divisors is an integer number (6655470).

Almost surely, 2^25290767 is an apocalyptic number.

25290767 is a deficient number, since it is larger than the sum of its proper divisors (1331113).

25290767 is a wasteful number, since it uses less digits than its factorization.

25290767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331112.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 25290767 is about 5028.9926426671. The cubic root of 25290767 is about 293.5310176011.

It can be divided in two parts, 252 and 90767, that added together give a palindrome (91019).

The spelling of 25290767 in words is "twenty-five million, two hundred ninety thousand, seven hundred sixty-seven".