51375276 has 24 divisors (see below), whose sum is σ = 133195440. Its totient is φ = 17125056.

The previous prime is 51375271. The next prime is 51375281. The reversal of 51375276 is 67257315.

51375276 is a `hidden beast` number, since 513 + 75 + 2 + 76 = 666.

It is an interprime number because it is at equal distance from previous prime (51375271) and next prime (51375281).

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

It is a self number, because there is not a number n which added to its sum of digits gives 51375276.

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 7 ways as a sum of consecutive naturals, for example, 237741 + ... + 237956.

It is an arithmetic number, because the mean of its divisors is an integer number (5549810).

Almost surely, 2^51375276 is an apocalyptic number.

It is an amenable number.

51375276 is an abundant number, since it is smaller than the sum of its proper divisors (81820164).

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

51375276 is a wasteful number, since it uses less digits than its factorization.

51375276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475710 (or 475702 counting only the distinct ones).

The product of its digits is 44100, while the sum is 36.

The square root of 51375276 is about 7167.6548466008. The cubic root of 51375276 is about 371.7503527919.

The spelling of 51375276 in words is "fifty-one million, three hundred seventy-five thousand, two hundred seventy-six".