25293853 has 4 divisors (see below), whose sum is σ = 27239548. Its totient is φ = 23348160.

The previous prime is 25293823. The next prime is 25293857. The reversal of 25293853 is 35839252.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7628644 + 17665209 = 2762^2 + 4203^2 .

It is a cyclic number.

It is not a de Polignac number, because 25293853 - 2¹³ = 25285661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25293857) 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, 972828 + ... + 972853.

It is an arithmetic number, because the mean of its divisors is an integer number (6809887).

Almost surely, 2^25293853 is an apocalyptic number.

It is an amenable number.

25293853 is a deficient number, since it is larger than the sum of its proper divisors (1945695).

25293853 is a wasteful number, since it uses less digits than its factorization.

25293853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1945694.

The product of its digits is 64800, while the sum is 37.

The square root of 25293853 is about 5029.2994541984. The cubic root of 25293853 is about 293.5429560802.

The spelling of 25293853 in words is "twenty-five million, two hundred ninety-three thousand, eight hundred fifty-three".