51158377 has 8 divisors (see below), whose sum is σ = 51785640. Its totient is φ = 50534400.

The previous prime is 51158363. The next prime is 51158399. The reversal of 51158377 is 77385115.

51158377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1371241 + 49787136 = 1171^2 + 7056^2 .

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 51158377 - 2⁷ = 51158249 is a prime.

It is a super-3 number, since 3×51158377³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (51128377) 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 7 ways as a sum of consecutive naturals, for example, 44749 + ... + 45877.

It is an arithmetic number, because the mean of its divisors is an integer number (6473205).

Almost surely, 2^51158377 is an apocalyptic number.

It is an amenable number.

51158377 is a deficient number, since it is larger than the sum of its proper divisors (627263).

51158377 is a wasteful number, since it uses less digits than its factorization.

51158377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1643.

The product of its digits is 29400, while the sum is 37.

The square root of 51158377 is about 7152.5084410995. The cubic root of 51158377 is about 371.2264560490.

The spelling of 51158377 in words is "fifty-one million, one hundred fifty-eight thousand, three hundred seventy-seven".