551743725 has 24 divisors (see below), whose sum is σ = 982388512. Its totient is φ = 271627200.

The previous prime is 551743723. The next prime is 551743729. The reversal of 551743725 is 527347155.

It is a happy number.

551743725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 551743725 - 2¹ = 551743723 is a prime.

It is a super-2 number, since 2×551743725² = 608842276153751250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551743723) 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, 281971 + ... + 283920.

Almost surely, 2^551743725 is an apocalyptic number.

It is an amenable number.

551743725 is a deficient number, since it is larger than the sum of its proper divisors (430644787).

551743725 is a wasteful number, since it uses less digits than its factorization.

551743725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565917 (or 565912 counting only the distinct ones).

The product of its digits is 147000, while the sum is 39.

The square root of 551743725 is about 23489.2257215941. The cubic root of 551743725 is about 820.1862183658.

The spelling of 551743725 in words is "five hundred fifty-one million, seven hundred forty-three thousand, seven hundred twenty-five".