5551274729 has 24 divisors (see below), whose sum is σ = 7586566848. Its totient is φ = 3992919840.

The previous prime is 5551274723. The next prime is 5551274737. The reversal of 5551274729 is 9274721555.

It is not a de Polignac number, because 5551274729 - 2⁸ = 5551274473 is a prime.

It is a super-2 number, since 2×5551274729² = 61633302233668046882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5551274723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 389117 + ... + 403130.

It is an arithmetic number, because the mean of its divisors is an integer number (316106952).

Almost surely, 2^5551274729 is an apocalyptic number.

It is an amenable number.

5551274729 is a deficient number, since it is larger than the sum of its proper divisors (2035292119).

5551274729 is a wasteful number, since it uses less digits than its factorization.

5551274729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792285 (or 792278 counting only the distinct ones).

The product of its digits is 882000, while the sum is 47.

The square root of 5551274729 is about 74506.8770584300. The cubic root of 5551274729 is about 1770.6425927097.

The spelling of 5551274729 in words is "five billion, five hundred fifty-one million, two hundred seventy-four thousand, seven hundred twenty-nine".