51163349 has 4 divisors (see below), whose sum is σ = 51616236. Its totient is φ = 50710464.

The previous prime is 51163327. The next prime is 51163351. The reversal of 51163349 is 94336115.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94336115 = 5 ⋅18867223.

It can be written as a sum of positive squares in 2 ways, for example, as 6340324 + 44823025 = 2518^2 + 6695^2 .

It is a cyclic number.

It is not a de Polignac number, because 51163349 - 2²⁰ = 50114773 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51163309) 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, 226274 + ... + 226499.

It is an arithmetic number, because the mean of its divisors is an integer number (12904059).

Almost surely, 2^51163349 is an apocalyptic number.

It is an amenable number.

51163349 is a deficient number, since it is larger than the sum of its proper divisors (452887).

51163349 is a wasteful number, since it uses less digits than its factorization.

51163349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452886.

The product of its digits is 9720, while the sum is 32.

The square root of 51163349 is about 7152.8560030242. The cubic root of 51163349 is about 371.2384819593.

The spelling of 51163349 in words is "fifty-one million, one hundred sixty-three thousand, three hundred forty-nine".