51148575 has 36 divisors (see below), whose sum is σ = 93189720. Its totient is φ = 26809920.

The previous prime is 51148523. The next prime is 51148579. The reversal of 51148575 is 57584115.

It is a de Polignac number, because none of the positive numbers 2^k-51148575 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51148579) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11349 + ... + 15201.

Almost surely, 2^51148575 is an apocalyptic number.

51148575 is a deficient number, since it is larger than the sum of its proper divisors (42041145).

51148575 is a wasteful number, since it uses less digits than its factorization.

51148575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3928 (or 3920 counting only the distinct ones).

The product of its digits is 28000, while the sum is 36.

The square root of 51148575 is about 7151.8231941233. The cubic root of 51148575 is about 371.2027454054.

It can be divided in two parts, 5114 and 8575, that added together give a square (13689 = 117²).

The spelling of 51148575 in words is "fifty-one million, one hundred forty-eight thousand, five hundred seventy-five".