51954539 has 32 divisors (see below), whose sum is σ = 67651584. Its totient is φ = 38776320.

The previous prime is 51954521. The next prime is 51954559. The reversal of 51954539 is 93545915.

It is a happy number.

51954539 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 51954539 - 2¹² = 51950443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51954496 and 51954505.

It is not an unprimeable number, because it can be changed into a prime (51954559) 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 31 ways as a sum of consecutive naturals, for example, 215459 + ... + 215699.

It is an arithmetic number, because the mean of its divisors is an integer number (2114112).

Almost surely, 2^51954539 is an apocalyptic number.

51954539 is a deficient number, since it is larger than the sum of its proper divisors (15697045).

51954539 is a wasteful number, since it uses less digits than its factorization.

51954539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387.

The product of its digits is 121500, while the sum is 41.

The square root of 51954539 is about 7207.9497084816. The cubic root of 51954539 is about 373.1423123725.

The spelling of 51954539 in words is "fifty-one million, nine hundred fifty-four thousand, five hundred thirty-nine".