7925782251 has 8 divisors (see below), whose sum is σ = 10592117200. Its totient is φ = 5271651072.

The previous prime is 7925782229. The next prime is 7925782301. The reversal of 7925782251 is 1522875297.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7925782251 - 2⁶ = 7925782187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7925782251.

It is not an unprimeable number, because it can be changed into a prime (7925782351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3049426 + ... + 3052023.

It is an arithmetic number, because the mean of its divisors is an integer number (1324014650).

Almost surely, 2^7925782251 is an apocalyptic number.

7925782251 is a deficient number, since it is larger than the sum of its proper divisors (2666334949).

7925782251 is a wasteful number, since it uses less digits than its factorization.

7925782251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6101885.

The product of its digits is 705600, while the sum is 48.

The square root of 7925782251 is about 89026.8625247459. The cubic root of 7925782251 is about 1993.7959624418.

The spelling of 7925782251 in words is "seven billion, nine hundred twenty-five million, seven hundred eighty-two thousand, two hundred fifty-one".