51745068 has 30 divisors (see below), whose sum is σ = 135272676. Its totient is φ = 17248248.

The previous prime is 51745033. The next prime is 51745081. The reversal of 51745068 is 86054715.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 79530 + ... + 80177.

Almost surely, 2^51745068 is an apocalyptic number.

It is an amenable number.

51745068 is an abundant number, since it is smaller than the sum of its proper divisors (83527608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51745068 is a wasteful number, since it uses less digits than its factorization.

51745068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159723 (or 159712 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 51745068 is about 7193.4044791045. The cubic root of 51745068 is about 372.6401568581.

The spelling of 51745068 in words is "fifty-one million, seven hundred forty-five thousand, sixty-eight".