51773387 has 2 divisors, whose sum is σ = 51773388. Its totient is φ = 51773386.

The previous prime is 51773383. The next prime is 51773431. The reversal of 51773387 is 78337715.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51773387 - 2² = 51773383 is a prime.

It is a super-3 number, since 3×51773387³ (a number of 24 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51773383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25886693 + 25886694.

It is an arithmetic number, because the mean of its divisors is an integer number (25886694).

Almost surely, 2^51773387 is an apocalyptic number.

51773387 is a deficient number, since it is larger than the sum of its proper divisors (1).

51773387 is an equidigital number, since it uses as much as digits as its factorization.

51773387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 123480, while the sum is 41.

The square root of 51773387 is about 7195.3726102267. The cubic root of 51773387 is about 372.7081238644.

The spelling of 51773387 in words is "fifty-one million, seven hundred seventy-three thousand, three hundred eighty-seven".