6625239261 has 8 divisors (see below), whose sum is σ = 8855252160. Its totient is φ = 4406026272.

The previous prime is 6625239253. The next prime is 6625239281. The reversal of 6625239261 is 1629325266.

It is a happy number.

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

It is not a de Polignac number, because 6625239261 - 2³ = 6625239253 is a prime.

It is a super-2 number, since 2×6625239261² = 87787590530991652242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6625239221) 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, 2698545 + ... + 2700998.

It is an arithmetic number, because the mean of its divisors is an integer number (1106906520).

Almost surely, 2^6625239261 is an apocalyptic number.

It is an amenable number.

6625239261 is a deficient number, since it is larger than the sum of its proper divisors (2230012899).

6625239261 is a wasteful number, since it uses less digits than its factorization.

6625239261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5399955.

The product of its digits is 233280, while the sum is 42.

The square root of 6625239261 is about 81395.5727358681. The cubic root of 6625239261 is about 1878.1654864657.

The spelling of 6625239261 in words is "six billion, six hundred twenty-five million, two hundred thirty-nine thousand, two hundred sixty-one".