51045611 has 4 divisors (see below), whose sum is σ = 54048312. Its totient is φ = 48042912.

The previous prime is 51045583. The next prime is 51045629. The reversal of 51045611 is 11654015.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51045611 - 2¹⁴ = 51029227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51045641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1501325 + ... + 1501358.

It is an arithmetic number, because the mean of its divisors is an integer number (13512078).

Almost surely, 2^51045611 is an apocalyptic number.

51045611 is a deficient number, since it is larger than the sum of its proper divisors (3002701).

51045611 is a wasteful number, since it uses less digits than its factorization.

51045611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3002700.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 51045611 is about 7144.6211236146. The cubic root of 51045611 is about 370.9534963980.

Adding to 51045611 its reverse (11654015), we get a palindrome (62699626).

The spelling of 51045611 in words is "fifty-one million, forty-five thousand, six hundred eleven".