51277995 has 16 divisors (see below), whose sum is σ = 91161120. Its totient is φ = 27348192.

The previous prime is 51277969. The next prime is 51277997. The reversal of 51277995 is 59977215.

51277995 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51277995 - 2¹⁰ = 51276971 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 51277995.

It is not an unprimeable number, because it can be changed into a prime (51277997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189784 + ... + 190053.

It is an arithmetic number, because the mean of its divisors is an integer number (5697570).

Almost surely, 2^51277995 is an apocalyptic number.

51277995 is a deficient number, since it is larger than the sum of its proper divisors (39883125).

51277995 is a wasteful number, since it uses less digits than its factorization.

51277995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379851 (or 379845 counting only the distinct ones).

The product of its digits is 198450, while the sum is 45.

The square root of 51277995 is about 7160.8655203125. The cubic root of 51277995 is about 371.5155634857.

The spelling of 51277995 in words is "fifty-one million, two hundred seventy-seven thousand, nine hundred ninety-five".