51755403 has 8 divisors (see below), whose sum is σ = 78865408. Its totient is φ = 29574504.

The previous prime is 51755381. The next prime is 51755419. The reversal of 51755403 is 30455715.

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

It is not a de Polignac number, because 51755403 - 2⁵ = 51755371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51755443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1232251 + ... + 1232292.

It is an arithmetic number, because the mean of its divisors is an integer number (9858176).

Almost surely, 2^51755403 is an apocalyptic number.

51755403 is a deficient number, since it is larger than the sum of its proper divisors (27110005).

51755403 is a wasteful number, since it uses less digits than its factorization.

51755403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2464553.

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 51755403 is about 7194.1228096273. The cubic root of 51755403 is about 372.6649642443.

The spelling of 51755403 in words is "fifty-one million, seven hundred fifty-five thousand, four hundred three".