51755349 has 16 divisors (see below), whose sum is σ = 70456320. Its totient is φ = 33786480.

The previous prime is 51755339. The next prime is 51755351. The reversal of 51755349 is 94355715.

It is not a de Polignac number, because 51755349 - 2⁵ = 51755317 is a prime.

It is a super-2 number, since 2×51755349² = 5357232300223602, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51755339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30214 + ... + 31880.

It is an arithmetic number, because the mean of its divisors is an integer number (4403520).

Almost surely, 2^51755349 is an apocalyptic number.

It is an amenable number.

51755349 is a deficient number, since it is larger than the sum of its proper divisors (18700971).

51755349 is a wasteful number, since it uses less digits than its factorization.

51755349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1880.

The product of its digits is 94500, while the sum is 39.

The square root of 51755349 is about 7194.1190565628. The cubic root of 51755349 is about 372.6648346352.

The spelling of 51755349 in words is "fifty-one million, seven hundred fifty-five thousand, three hundred forty-nine".