51174889 has 4 divisors (see below), whose sum is σ = 52042320. Its totient is φ = 50307460.

The previous prime is 51174853. The next prime is 51174901. The reversal of 51174889 is 98847115.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98847115 = 5 ⋅19769423.

It is a cyclic number.

It is not a de Polignac number, because 51174889 - 2²¹ = 49077737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51174089) 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, 433627 + ... + 433744.

It is an arithmetic number, because the mean of its divisors is an integer number (13010580).

Almost surely, 2^51174889 is an apocalyptic number.

51174889 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

51174889 is a deficient number, since it is larger than the sum of its proper divisors (867431).

51174889 is an equidigital number, since it uses as much as digits as its factorization.

51174889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867430.

The product of its digits is 80640, while the sum is 43.

The square root of 51174889 is about 7153.6626283324. The cubic root of 51174889 is about 371.2663910655.

The spelling of 51174889 in words is "fifty-one million, one hundred seventy-four thousand, eight hundred eighty-nine".