51452011 has 4 divisors (see below), whose sum is σ = 55409872. Its totient is φ = 47494152.

The previous prime is 51451999. The next prime is 51452017. The reversal of 51452011 is 11025415.

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 51452011 - 2¹⁷ = 51320939 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51452011.

It is not an unprimeable number, because it can be changed into a prime (51452017) 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 3 ways as a sum of consecutive naturals, for example, 1978911 + ... + 1978936.

It is an arithmetic number, because the mean of its divisors is an integer number (13852468).

Almost surely, 2^51452011 is an apocalyptic number.

51452011 is a deficient number, since it is larger than the sum of its proper divisors (3957861).

51452011 is a wasteful number, since it uses less digits than its factorization.

51452011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3957860.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 51452011 is about 7173.0057158767. The cubic root of 51452011 is about 371.9353449702.

Adding to 51452011 its reverse (11025415), we get a palindrome (62477426).

It can be divided in two parts, 514 and 52011, that added together give a palindrome (52525).

The spelling of 51452011 in words is "fifty-one million, four hundred fifty-two thousand, eleven".