51878341 has 4 divisors (see below), whose sum is σ = 54608800. Its totient is φ = 49147884.

The previous prime is 51878297. The next prime is 51878369. The reversal of 51878341 is 14387815.

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.

It is a cyclic number.

It is not a de Polignac number, because 51878341 - 2¹³ = 51870149 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51878341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51878371) 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, 1365201 + ... + 1365238.

It is an arithmetic number, because the mean of its divisors is an integer number (13652200).

Almost surely, 2^51878341 is an apocalyptic number.

It is an amenable number.

51878341 is a deficient number, since it is larger than the sum of its proper divisors (2730459).

51878341 is a wasteful number, since it uses less digits than its factorization.

51878341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2730458.

The product of its digits is 26880, while the sum is 37.

The square root of 51878341 is about 7202.6620773156. The cubic root of 51878341 is about 372.9598027537.

The spelling of 51878341 in words is "fifty-one million, eight hundred seventy-eight thousand, three hundred forty-one".