51375277 has 16 divisors (see below), whose sum is σ = 55683072. Its totient is φ = 47295360.

The previous prime is 51375271. The next prime is 51375281. The reversal of 51375277 is 77257315.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51375277 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51375271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53433 + ... + 54385.

It is an arithmetic number, because the mean of its divisors is an integer number (3480192).

Almost surely, 2^51375277 is an apocalyptic number.

It is an amenable number.

51375277 is a deficient number, since it is larger than the sum of its proper divisors (4307795).

51375277 is a wasteful number, since it uses less digits than its factorization.

51375277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068.

The product of its digits is 51450, while the sum is 37.

The square root of 51375277 is about 7167.6549163586. The cubic root of 51375277 is about 371.7503552039.

The spelling of 51375277 in words is "fifty-one million, three hundred seventy-five thousand, two hundred seventy-seven".