25201005 has 16 divisors (see below), whose sum is σ = 40388544. Its totient is φ = 13418240.

The previous prime is 25200979. The next prime is 25201027. The reversal of 25201005 is 50010252.

It is not a de Polignac number, because 25201005 - 2¹⁰ = 25199981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12262 + ... + 14168.

It is an arithmetic number, because the mean of its divisors is an integer number (2524284).

Almost surely, 2^25201005 is an apocalyptic number.

It is an amenable number.

25201005 is a deficient number, since it is larger than the sum of its proper divisors (15187539).

25201005 is a wasteful number, since it uses less digits than its factorization.

25201005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2796.

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 25201005 is about 5020.0602586025. The cubic root of 25201005 is about 293.1833391490.

Adding to 25201005 its reverse (50010252), we get a palindrome (75211257).

The spelling of 25201005 in words is "twenty-five million, two hundred one thousand, five".