51180291 has 12 divisors (see below), whose sum is σ = 74085232. Its totient is φ = 34047216.

The previous prime is 51180289. The next prime is 51180293. The reversal of 51180291 is 19208115.

It is an interprime number because it is at equal distance from previous prime (51180289) and next prime (51180293).

It is not a de Polignac number, because 51180291 - 2¹ = 51180289 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (51180293) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1456 + ... + 10221.

Almost surely, 2^51180291 is an apocalyptic number.

51180291 is a deficient number, since it is larger than the sum of its proper divisors (22904941).

51180291 is a wasteful number, since it uses less digits than its factorization.

51180291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12170 (or 12167 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 27.

The square root of 51180291 is about 7154.0401871949. The cubic root of 51180291 is about 371.2794541811.

The spelling of 51180291 in words is "fifty-one million, one hundred eighty thousand, two hundred ninety-one".