25290046 has 8 divisors (see below), whose sum is σ = 38059560. Its totient is φ = 12603528.

The previous prime is 25290043. The next prime is 25290061. The reversal of 25290046 is 64009252.

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

It is a junction number, because it is equal to n+sod(n) for n = 25289996 and 25290023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25290043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19981 + ... + 21208.

It is an arithmetic number, because the mean of its divisors is an integer number (4757445).

Almost surely, 2^25290046 is an apocalyptic number.

25290046 is a deficient number, since it is larger than the sum of its proper divisors (12769514).

25290046 is a wasteful number, since it uses less digits than its factorization.

25290046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41498.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 25290046 is about 5028.9209578199. The cubic root of 25290046 is about 293.5282282054.

Adding to 25290046 its reverse (64009252), we get a palindrome (89299298).

The spelling of 25290046 in words is "twenty-five million, two hundred ninety thousand, forty-six".