51757545 has 32 divisors (see below), whose sum is σ = 94913280. Its totient is φ = 23592960.

The previous prime is 51757543. The next prime is 51757579. The reversal of 51757545 is 54575715.

51757545 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 51757545 - 2¹ = 51757543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51757543) 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, 66921 + ... + 67689.

It is an arithmetic number, because the mean of its divisors is an integer number (2966040).

Almost surely, 2^51757545 is an apocalyptic number.

It is an amenable number.

51757545 is a deficient number, since it is larger than the sum of its proper divisors (43155735).

51757545 is a wasteful number, since it uses less digits than its factorization.

51757545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425.

The product of its digits is 122500, while the sum is 39.

The square root of 51757545 is about 7194.2716796073. The cubic root of 51757545 is about 372.6701053329.

It can be divided in two parts, 5175 and 7545, that added together give a triangular number (12720 = T₁₅₉).

The spelling of 51757545 in words is "fifty-one million, seven hundred fifty-seven thousand, five hundred forty-five".