25225577201 has 4 divisors (see below), whose sum is σ = 27518811504. Its totient is φ = 22932342900.

The previous prime is 25225577191. The next prime is 25225577213. The reversal of 25225577201 is 10277552252.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25225577201 - 2¹⁴ = 25225560817 is a prime.

It is a super-2 number, since 2×25225577201² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25225577501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1146617135 + ... + 1146617156.

It is an arithmetic number, because the mean of its divisors is an integer number (6879702876).

Almost surely, 2^25225577201 is an apocalyptic number.

It is an amenable number.

25225577201 is a deficient number, since it is larger than the sum of its proper divisors (2293234303).

25225577201 is a wasteful number, since it uses less digits than its factorization.

25225577201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2293234302.

The product of its (nonzero) digits is 98000, while the sum is 38.

The spelling of 25225577201 in words is "twenty-five billion, two hundred twenty-five million, five hundred seventy-seven thousand, two hundred one".