749514551 has 4 divisors (see below), whose sum is σ = 754545000. Its totient is φ = 744484104.

The previous prime is 749514523. The next prime is 749514589. The reversal of 749514551 is 155415947.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-749514551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 749514499 and 749514508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749514511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2515001 + ... + 2515298.

It is an arithmetic number, because the mean of its divisors is an integer number (188636250).

Almost surely, 2^749514551 is an apocalyptic number.

749514551 is a deficient number, since it is larger than the sum of its proper divisors (5030449).

749514551 is a wasteful number, since it uses less digits than its factorization.

749514551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5030448.

The product of its digits is 126000, while the sum is 41.

The square root of 749514551 is about 27377.2633950145. The cubic root of 749514551 is about 908.3642275794.

The spelling of 749514551 in words is "seven hundred forty-nine million, five hundred fourteen thousand, five hundred fifty-one".