6550631 has 2 divisors, whose sum is σ = 6550632. Its totient is φ = 6550630.

The previous prime is 6550553. The next prime is 6550639. The reversal of 6550631 is 1360556.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6550631 - 2¹⁴ = 6534247 is a prime.

It is a super-2 number, since 2×6550631² = 85821532996322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6550631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6550639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3275315 + 3275316.

It is an arithmetic number, because the mean of its divisors is an integer number (3275316).

Almost surely, 2^6550631 is an apocalyptic number.

6550631 is a deficient number, since it is larger than the sum of its proper divisors (1).

6550631 is an equidigital number, since it uses as much as digits as its factorization.

6550631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 6550631 is about 2559.4200514960. The cubic root of 6550631 is about 187.1088711832.

The spelling of 6550631 in words is "six million, five hundred fifty thousand, six hundred thirty-one".