25350005 has 16 divisors (see below), whose sum is σ = 31367424. Its totient is φ = 19656000.

The previous prime is 25350001. The next prime is 25350007. The reversal of 25350005 is 50005352.

It is not a de Polignac number, because 25350005 - 2² = 25350001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25350001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33380 + ... + 34130.

It is an arithmetic number, because the mean of its divisors is an integer number (1960464).

Almost surely, 2^25350005 is an apocalyptic number.

It is an amenable number.

25350005 is a deficient number, since it is larger than the sum of its proper divisors (6017419).

25350005 is a wasteful number, since it uses less digits than its factorization.

25350005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956.

The product of its (nonzero) digits is 750, while the sum is 20.

The square root of 25350005 is about 5034.8788466059. The cubic root of 25350005 is about 293.7600159555.

Adding to 25350005 its reverse (50005352), we get a palindrome (75355357).

The spelling of 25350005 in words is "twenty-five million, three hundred fifty thousand, five".