6621625023 has 8 divisors (see below), whose sum is σ = 9507974448. Its totient is φ = 4074846144.

The previous prime is 6621624959. The next prime is 6621625027. The reversal of 6621625023 is 3205261266.

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

It is not a de Polignac number, because 6621625023 - 2⁶ = 6621624959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6621625027) 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, 84892590 + ... + 84892667.

It is an arithmetic number, because the mean of its divisors is an integer number (1188496806).

Almost surely, 2^6621625023 is an apocalyptic number.

6621625023 is a deficient number, since it is larger than the sum of its proper divisors (2886349425).

6621625023 is a wasteful number, since it uses less digits than its factorization.

6621625023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169785273.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 6621625023 is about 81373.3680205016. The cubic root of 6621625023 is about 1877.8238951890.

Adding to 6621625023 its reverse (3205261266), we get a palindrome (9826886289).

The spelling of 6621625023 in words is "six billion, six hundred twenty-one million, six hundred twenty-five thousand, twenty-three".