51375057 has 8 divisors (see below), whose sum is σ = 68609184. Its totient is φ = 34195488.

The previous prime is 51375053. The next prime is 51375083. The reversal of 51375057 is 75057315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51375057 - 2² = 51375053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51375053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11388 + ... + 15245.

It is an arithmetic number, because the mean of its divisors is an integer number (8576148).

Almost surely, 2^51375057 is an apocalyptic number.

It is an amenable number.

51375057 is a deficient number, since it is larger than the sum of its proper divisors (17234127).

51375057 is a wasteful number, since it uses less digits than its factorization.

51375057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27279.

The product of its (nonzero) digits is 18375, while the sum is 33.

The square root of 51375057 is about 7167.6395696212. The cubic root of 51375057 is about 371.7498245648.

The spelling of 51375057 in words is "fifty-one million, three hundred seventy-five thousand, fifty-seven".