5551129 has 4 divisors (see below), whose sum is σ = 5877684. Its totient is φ = 5224576.

The previous prime is 5551121. The next prime is 5551157. The reversal of 5551129 is 9211555.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9211555 = 5 ⋅1842311.

It can be written as a sum of positive squares in 2 ways, for example, as 3920400 + 1630729 = 1980^2 + 1277^2 .

It is not a de Polignac number, because 5551129 - 2³ = 5551121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5551097 and 5551106.

It is not an unprimeable number, because it can be changed into a prime (5551121) 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, 163252 + ... + 163285.

It is an arithmetic number, because the mean of its divisors is an integer number (1469421).

Almost surely, 2^5551129 is an apocalyptic number.

It is an amenable number.

5551129 is a deficient number, since it is larger than the sum of its proper divisors (326555).

5551129 is a wasteful number, since it uses less digits than its factorization.

5551129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326554.

The product of its digits is 2250, while the sum is 28.

The square root of 5551129 is about 2356.0834025985. The cubic root of 5551129 is about 177.0627098597.

The spelling of 5551129 in words is "five million, five hundred fifty-one thousand, one hundred twenty-nine".