51573705 has 16 divisors (see below), whose sum is σ = 86106240. Its totient is φ = 26309888.

The previous prime is 51573703. The next prime is 51573707. The reversal of 51573705 is 50737515.

It is an interprime number because it is at equal distance from previous prime (51573703) and next prime (51573707).

It is a cyclic number.

It is not a de Polignac number, because 51573705 - 2¹ = 51573703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51573703) 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, 74400 + ... + 75089.

It is an arithmetic number, because the mean of its divisors is an integer number (5381640).

Almost surely, 2^51573705 is an apocalyptic number.

It is an amenable number.

51573705 is a deficient number, since it is larger than the sum of its proper divisors (34532535).

51573705 is a wasteful number, since it uses less digits than its factorization.

51573705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149520.

The product of its (nonzero) digits is 18375, while the sum is 33.

The square root of 51573705 is about 7181.4834818441. The cubic root of 51573705 is about 372.2283472008.

The spelling of 51573705 in words is "fifty-one million, five hundred seventy-three thousand, seven hundred five".