51873771 has 8 divisors (see below), whose sum is σ = 69269904. Its totient is φ = 34530080.

The previous prime is 51873769. The next prime is 51873791. The reversal of 51873771 is 17737815.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51873771 - 2¹ = 51873769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51873751) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10740 + ... + 14801.

It is an arithmetic number, because the mean of its divisors is an integer number (8658738).

Almost surely, 2^51873771 is an apocalyptic number.

51873771 is a deficient number, since it is larger than the sum of its proper divisors (17396133).

51873771 is a wasteful number, since it uses less digits than its factorization.

51873771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26221.

The product of its digits is 41160, while the sum is 39.

The square root of 51873771 is about 7202.3448265131. The cubic root of 51873771 is about 372.9488510006.

The spelling of 51873771 in words is "fifty-one million, eight hundred seventy-three thousand, seven hundred seventy-one".