25042506 has 8 divisors (see below), whose sum is σ = 50085024. Its totient is φ = 8347500.

The previous prime is 25042499. The next prime is 25042519. The reversal of 25042506 is 60524052.

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

25042506 is an admirable number.

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, 2086870 + ... + 2086881.

It is an arithmetic number, because the mean of its divisors is an integer number (6260628).

Almost surely, 2^25042506 is an apocalyptic number.

25042506 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.

25042506 is a wasteful number, since it uses less digits than its factorization.

25042506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4173756.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 25042506 is about 5004.2487947743. The cubic root of 25042506 is about 292.5673977206.

Adding to 25042506 its reverse (60524052), we get a palindrome (85566558).

The spelling of 25042506 in words is "twenty-five million, forty-two thousand, five hundred six".