25450535 has 48 divisors (see below), whose sum is σ = 36771840. Its totient is φ = 16843200.

The previous prime is 25450531. The next prime is 25450543. The reversal of 25450535 is 53505452.

It is a happy number.

It is not a de Polignac number, because 25450535 - 2² = 25450531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25450498 and 25450507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25450531) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 431336 + ... + 431394.

It is an arithmetic number, because the mean of its divisors is an integer number (766080).

Almost surely, 2^25450535 is an apocalyptic number.

25450535 is a deficient number, since it is larger than the sum of its proper divisors (11321305).

25450535 is a wasteful number, since it uses less digits than its factorization.

25450535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 29.

The square root of 25450535 is about 5044.8523268774. The cubic root of 25450535 is about 294.1478231431.

Adding to 25450535 its reverse (53505452), we get a palindrome (78955987).

The spelling of 25450535 in words is "twenty-five million, four hundred fifty thousand, five hundred thirty-five".