749168551 has 2 divisors, whose sum is σ = 749168552. Its totient is φ = 749168550.

The previous prime is 749168533. The next prime is 749168569. The reversal of 749168551 is 155861947.

It is a balanced prime because it is at equal distance from previous prime (749168533) and next prime (749168569).

It is an emirp because it is prime and its reverse (155861947) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 749168551 - 2⁹ = 749168039 is a prime.

It is a super-2 number, since 2×749168551² = 1122507035614879202, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (749168051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374584275 + 374584276.

It is an arithmetic number, because the mean of its divisors is an integer number (374584276).

Almost surely, 2^749168551 is an apocalyptic number.

749168551 is a deficient number, since it is larger than the sum of its proper divisors (1).

749168551 is an equidigital number, since it uses as much as digits as its factorization.

749168551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 46.

The square root of 749168551 is about 27370.9435533377. The cubic root of 749168551 is about 908.2244293605.

The spelling of 749168551 in words is "seven hundred forty-nine million, one hundred sixty-eight thousand, five hundred fifty-one".