51147195 has 32 divisors (see below), whose sum is σ = 89717760. Its totient is φ = 24675840.

The previous prime is 51147181. The next prime is 51147199. The reversal of 51147195 is 59174115.

It is not a de Polignac number, because 51147195 - 2⁵ = 51147163 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (51147199) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38787 + ... + 40083.

It is an arithmetic number, because the mean of its divisors is an integer number (2803680).

Almost surely, 2^51147195 is an apocalyptic number.

51147195 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51147195 is a deficient number, since it is larger than the sum of its proper divisors (38570565).

51147195 is a wasteful number, since it uses less digits than its factorization.

51147195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1555.

The product of its digits is 6300, while the sum is 33.

The square root of 51147195 is about 7151.7267145774. The cubic root of 51147195 is about 371.1994069976.

It can be divided in two parts, 511471 and 95, that added together give a triangular number (511566 = T₁₀₁₁).

The spelling of 51147195 in words is "fifty-one million, one hundred forty-seven thousand, one hundred ninety-five".