51542441 has 4 divisors (see below), whose sum is σ = 51573072. Its totient is φ = 51511812.

The previous prime is 51542437. The next prime is 51542461. The reversal of 51542441 is 14424515.

51542441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 51542441 - 2² = 51542437 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51542441.

It is not an unprimeable number, because it can be changed into a prime (51542401) 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 3 ways as a sum of consecutive naturals, for example, 12635 + ... + 16208.

It is an arithmetic number, because the mean of its divisors is an integer number (12893268).

Almost surely, 2^51542441 is an apocalyptic number.

It is an amenable number.

51542441 is a deficient number, since it is larger than the sum of its proper divisors (30631).

51542441 is a wasteful number, since it uses less digits than its factorization.

51542441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30630.

The product of its digits is 3200, while the sum is 26.

The square root of 51542441 is about 7179.3064428258. The cubic root of 51542441 is about 372.1531170077.

Adding to 51542441 its reverse (14424515), we get a palindrome (65966956).

The spelling of 51542441 in words is "fifty-one million, five hundred forty-two thousand, four hundred forty-one".