51155041 has 4 divisors (see below), whose sum is σ = 58462912. Its totient is φ = 43847172.

The previous prime is 51155033. The next prime is 51155047. The reversal of 51155041 is 14055115.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51155041 - 2³ = 51155033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51155047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3653925 + ... + 3653938.

It is an arithmetic number, because the mean of its divisors is an integer number (14615728).

Almost surely, 2^51155041 is an apocalyptic number.

It is an amenable number.

51155041 is a deficient number, since it is larger than the sum of its proper divisors (7307871).

51155041 is an equidigital number, since it uses as much as digits as its factorization.

51155041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7307870.

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 51155041 is about 7152.2752323998. The cubic root of 51155041 is about 371.2183867393.

The spelling of 51155041 in words is "fifty-one million, one hundred fifty-five thousand, forty-one".