51154539 has 16 divisors (see below), whose sum is σ = 69590784. Its totient is φ = 33415200.

The previous prime is 51154501. The next prime is 51154541. The reversal of 51154539 is 93545115.

51154539 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 51154539 - 2²⁰ = 50105963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51154549) 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 15 ways as a sum of consecutive naturals, for example, 80754 + ... + 81384.

It is an arithmetic number, because the mean of its divisors is an integer number (4349424).

Almost surely, 2^51154539 is an apocalyptic number.

51154539 is a deficient number, since it is larger than the sum of its proper divisors (18436245).

51154539 is a wasteful number, since it uses less digits than its factorization.

51154539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138.

The product of its digits is 13500, while the sum is 33.

The square root of 51154539 is about 7152.2401385860. The cubic root of 51154539 is about 371.2171724422.

The spelling of 51154539 in words is "fifty-one million, one hundred fifty-four thousand, five hundred thirty-nine".