51453550 has 24 divisors (see below), whose sum is σ = 96255000. Its totient is φ = 20462880.

The previous prime is 51453529. The next prime is 51453551. The reversal of 51453550 is 5535415.

51453550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51453551) 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 11 ways as a sum of consecutive naturals, for example, 6076 + ... + 11824.

It is an arithmetic number, because the mean of its divisors is an integer number (4010625).

Almost surely, 2^51453550 is an apocalyptic number.

51453550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51453550 is a deficient number, since it is larger than the sum of its proper divisors (44801450).

51453550 is a wasteful number, since it uses less digits than its factorization.

51453550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5940 (or 5935 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 51453550 is about 7173.1129922789. The cubic root of 51453550 is about 371.9390532982.

Adding to 51453550 its reverse (5535415), we get a palindrome (56988965).

It can be divided in two parts, 51453 and 550, that added together give a triangular number (52003 = T₃₂₂).

The spelling of 51453550 in words is "fifty-one million, four hundred fifty-three thousand, five hundred fifty".