551971753 has 4 divisors (see below), whose sum is σ = 554382340. Its totient is φ = 549561168.

The previous prime is 551971751. The next prime is 551971781. The reversal of 551971753 is 357179155.

551971753 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 262018969 + 289952784 = 16187^2 + 17028^2 .

It is a cyclic number.

It is not a de Polignac number, because 551971753 - 2¹ = 551971751 is a prime.

It is a super-2 number, since 2×551971753² = 609345632219786018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551971751) 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, 1204950 + ... + 1205407.

It is an arithmetic number, because the mean of its divisors is an integer number (138595585).

Almost surely, 2^551971753 is an apocalyptic number.

It is an amenable number.

551971753 is a deficient number, since it is larger than the sum of its proper divisors (2410587).

551971753 is a wasteful number, since it uses less digits than its factorization.

551971753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2410586.

The product of its digits is 165375, while the sum is 43.

The square root of 551971753 is about 23494.0791051703. The cubic root of 551971753 is about 820.2991933186.

The spelling of 551971753 in words is "five hundred fifty-one million, nine hundred seventy-one thousand, seven hundred fifty-three".