51761603 has 4 divisors (see below), whose sum is σ = 51783360. Its totient is φ = 51739848.

The previous prime is 51761597. The next prime is 51761623. The reversal of 51761603 is 30616715.

51761603 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 51761603 - 2¹⁴ = 51745219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51761623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6800 + ... + 12237.

It is an arithmetic number, because the mean of its divisors is an integer number (12945840).

Almost surely, 2^51761603 is an apocalyptic number.

51761603 is a deficient number, since it is larger than the sum of its proper divisors (21757).

51761603 is a wasteful number, since it uses less digits than its factorization.

51761603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21756.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 51761603 is about 7194.5537040181. The cubic root of 51761603 is about 372.6798446908.

The spelling of 51761603 in words is "fifty-one million, seven hundred sixty-one thousand, six hundred three".