25251125011 has 4 divisors (see below), whose sum is σ = 28858428592. Its totient is φ = 21643821432.

The previous prime is 25251124967. The next prime is 25251125041. The reversal of 25251125011 is 11052115252.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25251125011 - 2¹³ = 25251116819 is a prime.

It is a super-2 number, since 2×25251125011² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25251125041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1803651780 + ... + 1803651793.

It is an arithmetic number, because the mean of its divisors is an integer number (7214607148).

Almost surely, 2^25251125011 is an apocalyptic number.

25251125011 is a deficient number, since it is larger than the sum of its proper divisors (3607303581).

25251125011 is an equidigital number, since it uses as much as digits as its factorization.

25251125011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3607303580.

The product of its (nonzero) digits is 1000, while the sum is 25.

The spelling of 25251125011 in words is "twenty-five billion, two hundred fifty-one million, one hundred twenty-five thousand, eleven".