25152769 has 4 divisors (see below), whose sum is σ = 25205760. Its totient is φ = 25099780.

The previous prime is 25152767. The next prime is 25152791. The reversal of 25152769 is 96725152.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25152769 - 2¹ = 25152767 is a prime.

It is a super-2 number, since 2×25152769² = 1265323576734722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25152767) 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, 25777 + ... + 26734.

It is an arithmetic number, because the mean of its divisors is an integer number (6301440).

Almost surely, 2^25152769 is an apocalyptic number.

It is an amenable number.

25152769 is a deficient number, since it is larger than the sum of its proper divisors (52991).

25152769 is an equidigital number, since it uses as much as digits as its factorization.

25152769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52990.

The product of its digits is 37800, while the sum is 37.

The square root of 25152769 is about 5015.2536326690. The cubic root of 25152769 is about 292.9961637568.

It can be divided in two parts, 25152 and 769, that added together give a square (25921 = 161²).

The spelling of 25152769 in words is "twenty-five million, one hundred fifty-two thousand, seven hundred sixty-nine".