51660141 has 8 divisors (see below), whose sum is σ = 74178720. Its totient is φ = 31790832.

The previous prime is 51660137. The next prime is 51660173. The reversal of 51660141 is 14106615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51660141 - 2² = 51660137 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51660641) 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, 662271 + ... + 662348.

It is an arithmetic number, because the mean of its divisors is an integer number (9272340).

Almost surely, 2^51660141 is an apocalyptic number.

It is an amenable number.

51660141 is a deficient number, since it is larger than the sum of its proper divisors (22518579).

51660141 is a wasteful number, since it uses less digits than its factorization.

51660141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324635.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 51660141 is about 7187.4989391304. The cubic root of 51660141 is about 372.4361790275.

Adding to 51660141 its reverse (14106615), we get a palindrome (65766756).

The spelling of 51660141 in words is "fifty-one million, six hundred sixty thousand, one hundred forty-one".