6553951 has 2 divisors, whose sum is σ = 6553952. Its totient is φ = 6553950.

The previous prime is 6553949. The next prime is 6553957. The reversal of 6553951 is 1593556.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6553951 - 2¹ = 6553949 is a prime.

Together with 6553949, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6553957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3276975 + 3276976.

It is an arithmetic number, because the mean of its divisors is an integer number (3276976).

Almost surely, 2^6553951 is an apocalyptic number.

6553951 is a deficient number, since it is larger than the sum of its proper divisors (1).

6553951 is an equidigital number, since it uses as much as digits as its factorization.

6553951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20250, while the sum is 34.

The square root of 6553951 is about 2560.0685537696. The cubic root of 6553951 is about 187.1404761047.

The spelling of 6553951 in words is "six million, five hundred fifty-three thousand, nine hundred fifty-one".