51156541 has 8 divisors (see below), whose sum is σ = 54036224. Its totient is φ = 48353760.

The previous prime is 51156527. The next prime is 51156559. The reversal of 51156541 is 14565115.

It is a happy number.

51156541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51156541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51156571) 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, 17856 + ... + 20521.

It is an arithmetic number, because the mean of its divisors is an integer number (6754528).

Almost surely, 2^51156541 is an apocalyptic number.

It is an amenable number.

51156541 is a deficient number, since it is larger than the sum of its proper divisors (2879683).

51156541 is a wasteful number, since it uses less digits than its factorization.

51156541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38451.

The product of its digits is 3000, while the sum is 28.

The square root of 51156541 is about 7152.3800933675. The cubic root of 51156541 is about 371.2220150694. Note that the first 3 decimals are identical.

The spelling of 51156541 in words is "fifty-one million, one hundred fifty-six thousand, five hundred forty-one".