51174899 has 4 divisors (see below), whose sum is σ = 51203880. Its totient is φ = 51145920.

The previous prime is 51174853. The next prime is 51174901. The reversal of 51174899 is 99847115.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99847115 = 5 ⋅19969423.

It is a cyclic number.

It is not a de Polignac number, because 51174899 - 2¹² = 51170803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51174499) 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, 11657 + ... + 15434.

It is an arithmetic number, because the mean of its divisors is an integer number (12800970).

Almost surely, 2^51174899 is an apocalyptic number.

51174899 is a deficient number, since it is larger than the sum of its proper divisors (28981).

51174899 is a wasteful number, since it uses less digits than its factorization.

51174899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28980.

The product of its digits is 90720, while the sum is 44.

The square root of 51174899 is about 7153.6633272751. The cubic root of 51174899 is about 371.2664152484.

The spelling of 51174899 in words is "fifty-one million, one hundred seventy-four thousand, eight hundred ninety-nine".