51958387 has 12 divisors (see below), whose sum is σ = 57832320. Its totient is φ = 46403280.

The previous prime is 51958381. The next prime is 51958411. The reversal of 51958387 is 78385915.

51958387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51958387 - 2⁷ = 51958259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51958381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10414 + ... + 14572.

It is an arithmetic number, because the mean of its divisors is an integer number (4819360).

Almost surely, 2^51958387 is an apocalyptic number.

51958387 is a deficient number, since it is larger than the sum of its proper divisors (5873933).

51958387 is a wasteful number, since it uses less digits than its factorization.

51958387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4234 (or 4203 counting only the distinct ones).

The product of its digits is 302400, while the sum is 46.

The square root of 51958387 is about 7208.2166310399. The cubic root of 51958387 is about 373.1515243759.

The spelling of 51958387 in words is "fifty-one million, nine hundred fifty-eight thousand, three hundred eighty-seven".