51980611 has 8 divisors (see below), whose sum is σ = 55142640. Its totient is φ = 48830208.

The previous prime is 51980609. The next prime is 51980623. The reversal of 51980611 is 11608915.

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

It is a cyclic number.

It is not a de Polignac number, because 51980611 - 2¹ = 51980609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51980641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7375 + ... + 12583.

It is an arithmetic number, because the mean of its divisors is an integer number (6892830).

Almost surely, 2^51980611 is an apocalyptic number.

51980611 is a deficient number, since it is larger than the sum of its proper divisors (3162029).

51980611 is a wasteful number, since it uses less digits than its factorization.

51980611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5813.

The product of its (nonzero) digits is 2160, while the sum is 31.

The square root of 51980611 is about 7209.7580403229. The cubic root of 51980611 is about 373.2047191078.

The spelling of 51980611 in words is "fifty-one million, nine hundred eighty thousand, six hundred eleven".