215006753 has 4 divisors (see below), whose sum is σ = 231545748. Its totient is φ = 198467760.

The previous prime is 215006719. The next prime is 215006773. The reversal of 215006753 is 357600512.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 67699984 + 147306769 = 8228^2 + 12137^2 .

It is a cyclic number.

It is not a de Polignac number, because 215006753 - 2¹² = 215002657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215006713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8269478 + ... + 8269503.

It is an arithmetic number, because the mean of its divisors is an integer number (57886437).

Almost surely, 2^215006753 is an apocalyptic number.

It is an amenable number.

215006753 is a deficient number, since it is larger than the sum of its proper divisors (16538995).

215006753 is a wasteful number, since it uses less digits than its factorization.

215006753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16538994.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 215006753 is about 14663.1085721957. The cubic root of 215006753 is about 599.0789135751.

The spelling of 215006753 in words is "two hundred fifteen million, six thousand, seven hundred fifty-three".