51311295 has 96 divisors (see below), whose sum is σ = 108501120. Its totient is φ = 21934080.

The previous prime is 51311291. The next prime is 51311303. The reversal of 51311295 is 59211315.

It is not a de Polignac number, because 51311295 - 2² = 51311291 is a prime.

Its product of digits (1350) is a multiple of the sum of its prime factors (225).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51311291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 374467 + ... + 374603.

It is an arithmetic number, because the mean of its divisors is an integer number (1130220).

Almost surely, 2^51311295 is an apocalyptic number.

51311295 is an abundant number, since it is smaller than the sum of its proper divisors (57189825).

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

51311295 is a wasteful number, since it uses less digits than its factorization.

51311295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225 (or 222 counting only the distinct ones).

The product of its digits is 1350, while the sum is 27.

The square root of 51311295 is about 7163.1902808735. The cubic root of 51311295 is about 371.5959669883.

The spelling of 51311295 in words is "fifty-one million, three hundred eleven thousand, two hundred ninety-five".