25145263 has 16 divisors (see below), whose sum is σ = 29850912. Its totient is φ = 20880000.

The previous prime is 25145221. The next prime is 25145273. The reversal of 25145263 is 36254152.

It is a cyclic number.

It is not a de Polignac number, because 25145263 - 2²¹ = 23048111 is a prime.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25145203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13573 + ... + 15313.

It is an arithmetic number, because the mean of its divisors is an integer number (1865682).

Almost surely, 2^25145263 is an apocalyptic number.

25145263 is a deficient number, since it is larger than the sum of its proper divisors (4705649).

25145263 is a wasteful number, since it uses less digits than its factorization.

25145263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866.

The product of its digits is 7200, while the sum is 28.

The square root of 25145263 is about 5014.5052597440. The cubic root of 25145263 is about 292.9670158990.

Subtracting 25145263 from its reverse (36254152), we obtain a square (11108889 = 3333²).

It can be divided in two parts, 2514 and 5263, that added together give a palindrome (7777).

The spelling of 25145263 in words is "twenty-five million, one hundred forty-five thousand, two hundred sixty-three".