7925258261 has 4 divisors (see below), whose sum is σ = 7925568192. Its totient is φ = 7924948332.

The previous prime is 7925258251. The next prime is 7925258273. The reversal of 7925258261 is 1628525297.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1628525297 = 7 ⋅232646471.

It is a cyclic number.

It is not a de Polignac number, because 7925258261 - 2⁶ = 7925258197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7925258251) 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, 112781 + ... + 169026.

It is an arithmetic number, because the mean of its divisors is an integer number (1981392048).

Almost surely, 2^7925258261 is an apocalyptic number.

It is an amenable number.

7925258261 is a deficient number, since it is larger than the sum of its proper divisors (309931).

7925258261 is a wasteful number, since it uses less digits than its factorization.

7925258261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309930.

The product of its digits is 604800, while the sum is 47.

The square root of 7925258261 is about 89023.9196002962. The cubic root of 7925258261 is about 1993.7520234699.

The spelling of 7925258261 in words is "seven billion, nine hundred twenty-five million, two hundred fifty-eight thousand, two hundred sixty-one".