51703761 has 4 divisors (see below), whose sum is σ = 68938352. Its totient is φ = 34469172.

The previous prime is 51703733. The next prime is 51703777. The reversal of 51703761 is 16730715.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 51703761 - 2⁷ = 51703633 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51703261) 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, 8617291 + ... + 8617296.

It is an arithmetic number, because the mean of its divisors is an integer number (17234588).

Almost surely, 2^51703761 is an apocalyptic number.

It is an amenable number.

51703761 is a deficient number, since it is larger than the sum of its proper divisors (17234591).

51703761 is a wasteful number, since it uses less digits than its factorization.

51703761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17234590.

The product of its (nonzero) digits is 4410, while the sum is 30.

The square root of 51703761 is about 7190.5327340886. The cubic root of 51703761 is about 372.5409735269.

The spelling of 51703761 in words is "fifty-one million, seven hundred three thousand, seven hundred sixty-one".