25215033005 has 32 divisors (see below), whose sum is σ = 31341673440. Its totient is φ = 19461406720.

The previous prime is 25215033001. The next prime is 25215033037. The reversal of 25215033005 is 50033051252.

It can be written as a sum of positive squares in 16 ways, for example, as 18901300324 + 6313732681 = 137482^2 + 79459^2 .

It is not a de Polignac number, because 25215033005 - 2² = 25215033001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25215033001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13179929 + ... + 13181841.

It is an arithmetic number, because the mean of its divisors is an integer number (979427295).

Almost surely, 2^25215033005 is an apocalyptic number.

It is an amenable number.

25215033005 is a deficient number, since it is larger than the sum of its proper divisors (6126640435).

25215033005 is a wasteful number, since it uses less digits than its factorization.

25215033005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2641.

The product of its (nonzero) digits is 4500, while the sum is 26.

Adding to 25215033005 its reverse (50033051252), we get a palindrome (75248084257).

The spelling of 25215033005 in words is "twenty-five billion, two hundred fifteen million, thirty-three thousand, five".