25717434 has 8 divisors (see below), whose sum is σ = 51434880. Its totient is φ = 8572476.

The previous prime is 25717429. The next prime is 25717453. The reversal of 25717434 is 43471752.

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

25717434 is an admirable number.

It is a super-2 number, since 2×25717434² = 1322772823088712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25717395 and 25717404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2143114 + ... + 2143125.

It is an arithmetic number, because the mean of its divisors is an integer number (6429360).

Almost surely, 2^25717434 is an apocalyptic number.

25717434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25717434 is a wasteful number, since it uses less digits than its factorization.

25717434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4286244.

The product of its digits is 23520, while the sum is 33.

The square root of 25717434 is about 5071.2359440278. The cubic root of 25717434 is about 295.1724893760.

The spelling of 25717434 in words is "twenty-five million, seven hundred seventeen thousand, four hundred thirty-four".