25742829 has 8 divisors (see below), whose sum is σ = 39227200. Its totient is φ = 14710176.

The previous prime is 25742797. The next prime is 25742833. The reversal of 25742829 is 92824752.

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

It is not a de Polignac number, because 25742829 - 2⁵ = 25742797 is a prime.

It is a super-3 number, since 3×25742829³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25742429) 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, 612904 + ... + 612945.

It is an arithmetic number, because the mean of its divisors is an integer number (4903400).

Almost surely, 2^25742829 is an apocalyptic number.

It is an amenable number.

25742829 is a deficient number, since it is larger than the sum of its proper divisors (13484371).

25742829 is a wasteful number, since it uses less digits than its factorization.

25742829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225859.

The product of its digits is 80640, while the sum is 39.

The square root of 25742829 is about 5073.7391537209. The cubic root of 25742829 is about 295.2696146622.

The spelling of 25742829 in words is "twenty-five million, seven hundred forty-two thousand, eight hundred twenty-nine".