25973977 has 8 divisors (see below), whose sum is σ = 27550152. Its totient is φ = 24403200.

The previous prime is 25973971. The next prime is 25973989. The reversal of 25973977 is 77937952.

It can be written as a sum of positive squares in 4 ways, for example, as 55696 + 25918281 = 236^2 + 5091^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25973977 - 2²³ = 17585369 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 25973977.

It is not an unprimeable number, because it can be changed into a prime (25973971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13027 + ... + 14887.

It is an arithmetic number, because the mean of its divisors is an integer number (3443769).

Almost surely, 2^25973977 is an apocalyptic number.

It is an amenable number.

25973977 is a deficient number, since it is larger than the sum of its proper divisors (1576175).

25973977 is a wasteful number, since it uses less digits than its factorization.

25973977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2699.

The product of its digits is 833490, while the sum is 49.

The square root of 25973977 is about 5096.4671096751. The cubic root of 25973977 is about 296.1507366229.

The spelling of 25973977 in words is "twenty-five million, nine hundred seventy-three thousand, nine hundred seventy-seven".