25435397 has 8 divisors (see below), whose sum is σ = 27431544. Its totient is φ = 23444928.

The previous prime is 25435373. The next prime is 25435409. The reversal of 25435397 is 79353452.

It can be written as a sum of positive squares in 4 ways, for example, as 23716 + 25411681 = 154^2 + 5041^2 .

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

It is not a de Polignac number, because 25435397 - 2¹⁰ = 25434373 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 25435397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25435307) 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, 14963 + ... + 16575.

It is an arithmetic number, because the mean of its divisors is an integer number (3428943).

Almost surely, 2^25435397 is an apocalyptic number.

It is an amenable number.

25435397 is a deficient number, since it is larger than the sum of its proper divisors (1996147).

25435397 is a wasteful number, since it uses less digits than its factorization.

25435397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2839.

The product of its digits is 113400, while the sum is 38.

The square root of 25435397 is about 5043.3517624691. The cubic root of 25435397 is about 294.0894917841.

The spelling of 25435397 in words is "twenty-five million, four hundred thirty-five thousand, three hundred ninety-seven".