51544955 has 32 divisors (see below), whose sum is σ = 80483328. Its totient is φ = 30729600.

The previous prime is 51544949. The next prime is 51544957. The reversal of 51544955 is 55944515.

51544955 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51544955 - 2⁸ = 51544699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51544957) 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 31 ways as a sum of consecutive naturals, for example, 5945 + ... + 11765.

It is an arithmetic number, because the mean of its divisors is an integer number (2515104).

Almost surely, 2^51544955 is an apocalyptic number.

51544955 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51544955 is a deficient number, since it is larger than the sum of its proper divisors (28938373).

51544955 is a wasteful number, since it uses less digits than its factorization.

51544955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5867.

The product of its digits is 90000, while the sum is 38.

The square root of 51544955 is about 7179.4815272414. The cubic root of 51544955 is about 372.1591675408.

The spelling of 51544955 in words is "fifty-one million, five hundred forty-four thousand, nine hundred fifty-five".