51377843 has 16 divisors (see below), whose sum is σ = 59270400. Its totient is φ = 44045280.

The previous prime is 51377827. The next prime is 51377857. The reversal of 51377843 is 34877315.

It is a cyclic number.

It is not a de Polignac number, because 51377843 - 2⁴ = 51377827 is a prime.

It is a super-3 number, since 3×51377843³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51377797 and 51377806.

It is not an unprimeable number, because it can be changed into a prime (51377803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60818 + ... + 61656.

It is an arithmetic number, because the mean of its divisors is an integer number (3704400).

Almost surely, 2^51377843 is an apocalyptic number.

51377843 is a deficient number, since it is larger than the sum of its proper divisors (7892557).

51377843 is a wasteful number, since it uses less digits than its factorization.

51377843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162.

The product of its digits is 70560, while the sum is 38.

The square root of 51377843 is about 7167.8339126964. The cubic root of 51377843 is about 371.7565442738.

The spelling of 51377843 in words is "fifty-one million, three hundred seventy-seven thousand, eight hundred forty-three".