25042505 has 8 divisors (see below), whose sum is σ = 30236352. Its totient is φ = 19910448.

The previous prime is 25042499. The next prime is 25042519. The reversal of 25042505 is 50524052.

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

It is a cyclic number.

It is not a de Polignac number, because 25042505 - 2⁴ = 25042489 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14549 + ... + 16178.

It is an arithmetic number, because the mean of its divisors is an integer number (3779544).

Almost surely, 2^25042505 is an apocalyptic number.

It is an amenable number.

25042505 is a deficient number, since it is larger than the sum of its proper divisors (5193847).

25042505 is a wasteful number, since it uses less digits than its factorization.

25042505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30895.

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 25042505 is about 5004.2486948592. The cubic root of 25042505 is about 292.5673938263.

Adding to 25042505 its reverse (50524052), we get a palindrome (75566557).

The spelling of 25042505 in words is "twenty-five million, forty-two thousand, five hundred five".