25578151151 has 4 divisors (see below), whose sum is σ = 29232172752. Its totient is φ = 21924129552.

The previous prime is 25578151147. The next prime is 25578151153. The reversal of 25578151151 is 15115187552.

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 25578151151 - 2² = 25578151147 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25578151099 and 25578151108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25578151153) 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, 1827010790 + ... + 1827010803.

It is an arithmetic number, because the mean of its divisors is an integer number (7308043188).

Almost surely, 2^25578151151 is an apocalyptic number.

25578151151 is a deficient number, since it is larger than the sum of its proper divisors (3654021601).

25578151151 is an equidigital number, since it uses as much as digits as its factorization.

25578151151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3654021600.

The product of its digits is 70000, while the sum is 41.

The spelling of 25578151151 in words is "twenty-five billion, five hundred seventy-eight million, one hundred fifty-one thousand, one hundred fifty-one".