51758745 has 32 divisors (see below), whose sum is σ = 85691520. Its totient is φ = 26657280.

The previous prime is 51758741. The next prime is 51758767. The reversal of 51758745 is 54785715.

51758745 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 51758745 - 2² = 51758741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51758697 and 51758706.

It is not an unprimeable number, because it can be changed into a prime (51758741) 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, 99085 + ... + 99605.

It is an arithmetic number, because the mean of its divisors is an integer number (2677860).

Almost surely, 2^51758745 is an apocalyptic number.

It is an amenable number.

51758745 is a deficient number, since it is larger than the sum of its proper divisors (33932775).

51758745 is a wasteful number, since it uses less digits than its factorization.

51758745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745.

The product of its digits is 196000, while the sum is 42.

The square root of 51758745 is about 7194.3550788101. The cubic root of 51758745 is about 372.6729854326.

It can be divided in two parts, 5 and 1758745, that added together give a triangular number (1758750 = T₁₈₇₅).

The spelling of 51758745 in words is "fifty-one million, seven hundred fifty-eight thousand, seven hundred forty-five".