726132551 has 2 divisors, whose sum is σ = 726132552. Its totient is φ = 726132550.

The previous prime is 726132503. The next prime is 726132559. The reversal of 726132551 is 155231627.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-726132551 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (726132559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363066275 + 363066276.

It is an arithmetic number, because the mean of its divisors is an integer number (363066276).

Almost surely, 2^726132551 is an apocalyptic number.

726132551 is a deficient number, since it is larger than the sum of its proper divisors (1).

726132551 is an equidigital number, since it uses as much as digits as its factorization.

726132551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12600, while the sum is 32.

The square root of 726132551 is about 26946.8467728601. The cubic root of 726132551 is about 898.8184292816.

The spelling of 726132551 in words is "seven hundred twenty-six million, one hundred thirty-two thousand, five hundred fifty-one".