7625823221 has 16 divisors (see below), whose sum is σ = 7848783360. Its totient is φ = 7406093760.

The previous prime is 7625823217. The next prime is 7625823277. The reversal of 7625823221 is 1223285267.

It is a cyclic number.

It is not a de Polignac number, because 7625823221 - 2² = 7625823217 is a prime.

It is a super-3 number, since 3×7625823221³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7625823281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3324551 + ... + 3326843.

It is an arithmetic number, because the mean of its divisors is an integer number (490548960).

Almost surely, 2^7625823221 is an apocalyptic number.

It is an amenable number.

7625823221 is a deficient number, since it is larger than the sum of its proper divisors (222960139).

7625823221 is a wasteful number, since it uses less digits than its factorization.

7625823221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2956.

The product of its digits is 80640, while the sum is 38.

The square root of 7625823221 is about 87325.9596053774. The cubic root of 7625823221 is about 1968.3194219452.

The spelling of 7625823221 in words is "seven billion, six hundred twenty-five million, eight hundred twenty-three thousand, two hundred twenty-one".