6620714531 has 2 divisors, whose sum is σ = 6620714532. Its totient is φ = 6620714530.

The previous prime is 6620714501. The next prime is 6620714567. The reversal of 6620714531 is 1354170266.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6620714531 - 2³⁰ = 5546972707 is a prime.

It is a super-2 number, since 2×6620714531² = 87667721801989099922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6620714491 and 6620714500.

It is not a weakly prime, because it can be changed into another prime (6620714501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3310357265 + 3310357266.

It is an arithmetic number, because the mean of its divisors is an integer number (3310357266).

Almost surely, 2^6620714531 is an apocalyptic number.

6620714531 is a deficient number, since it is larger than the sum of its proper divisors (1).

6620714531 is an equidigital number, since it uses as much as digits as its factorization.

6620714531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 6620714531 is about 81367.7732950829. The cubic root of 6620714531 is about 1877.7378225608.

Adding to 6620714531 its reverse (1354170266), we get a palindrome (7974884797).

The spelling of 6620714531 in words is "six billion, six hundred twenty million, seven hundred fourteen thousand, five hundred thirty-one".