6625051215531 has 8 divisors (see below), whose sum is σ = 10095316137984. Its totient is φ = 3785743551720.

The previous prime is 6625051215521. The next prime is 6625051215553. The reversal of 6625051215531 is 1355121505266.

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 6625051215531 - 2²¹ = 6625049118379 is a prime.

It is a super-2 number, since 2×6625051215531² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6625051215521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157739314635 + ... + 157739314676.

It is an arithmetic number, because the mean of its divisors is an integer number (1261914517248).

Almost surely, 2^{6625051215531} is an apocalyptic number.

6625051215531 is a deficient number, since it is larger than the sum of its proper divisors (3470264922453).

6625051215531 is a wasteful number, since it uses less digits than its factorization.

6625051215531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315478629321.

The product of its (nonzero) digits is 270000, while the sum is 42.

The spelling of 6625051215531 in words is "six trillion, six hundred twenty-five billion, fifty-one million, two hundred fifteen thousand, five hundred thirty-one".