551734231 has 4 divisors (see below), whose sum is σ = 552487672. Its totient is φ = 550980792.

The previous prime is 551734207. The next prime is 551734237. The reversal of 551734231 is 132437155.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132437155 = 5 ⋅26487431.

It is a cyclic number.

It is not a de Polignac number, because 551734231 - 2⁵ = 551734199 is a prime.

It is a super-2 number, since 2×551734231² = 608821323314322722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 551734193 and 551734202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551734237) 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, 375621 + ... + 377086.

It is an arithmetic number, because the mean of its divisors is an integer number (138121918).

Almost surely, 2^551734231 is an apocalyptic number.

551734231 is a deficient number, since it is larger than the sum of its proper divisors (753441).

551734231 is an equidigital number, since it uses as much as digits as its factorization.

551734231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753440.

The product of its digits is 12600, while the sum is 31.

The square root of 551734231 is about 23489.0236280693. The cubic root of 551734231 is about 820.1815139518.

The spelling of 551734231 in words is "five hundred fifty-one million, seven hundred thirty-four thousand, two hundred thirty-one".