51755715 has 48 divisors (see below), whose sum is σ = 103034880. Its totient is φ = 23768640.

The previous prime is 51755659. The next prime is 51755731.

51755715 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51755715 - 2¹⁰ = 51754691 is a prime.

It is a super-2 number, since 2×51755715² = 5357308070322450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 51755715.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6654 + ... + 12156.

It is an arithmetic number, because the mean of its divisors is an integer number (2146560).

Almost surely, 2^51755715 is an apocalyptic number.

51755715 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51755715 is a deficient number, since it is larger than the sum of its proper divisors (51279165).

51755715 is a wasteful number, since it uses less digits than its factorization.

51755715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5544 (or 5541 counting only the distinct ones).

The product of its digits is 30625, while the sum is 36.

The square root of 51755715 is about 7194.1444939617. The cubic root of 51755715 is about 372.6657130951.

The spelling of 51755715 in words is "fifty-one million, seven hundred fifty-five thousand, seven hundred fifteen".