51461542 has 12 divisors (see below), whose sum is σ = 84848148. Its totient is φ = 23391500.

The previous prime is 51461539. The next prime is 51461549. The reversal of 51461542 is 24516415.

51461542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 51461542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51461549) 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 5 ways as a sum of consecutive naturals, for example, 106084 + ... + 106567.

It is an arithmetic number, because the mean of its divisors is an integer number (7070679).

Almost surely, 2^51461542 is an apocalyptic number.

51461542 is a deficient number, since it is larger than the sum of its proper divisors (33386606).

51461542 is a wasteful number, since it uses less digits than its factorization.

51461542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212675 (or 212664 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 51461542 is about 7173.6700509572. The cubic root of 51461542 is about 371.9583093911.

Adding to 51461542 its reverse (24516415), we get a palindrome (75977957).

It can be divided in two parts, 51461 and 542, that added together give a triangular number (52003 = T₃₂₂).

The spelling of 51461542 in words is "fifty-one million, four hundred sixty-one thousand, five hundred forty-two".