52100915 has 4 divisors (see below), whose sum is σ = 62521104. Its totient is φ = 41680728.

The previous prime is 52100899. The next prime is 52100977. The reversal of 52100915 is 51900125.

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

It is a cyclic number.

It is not a de Polignac number, because 52100915 - 2⁴ = 52100899 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5210087 + ... + 5210096.

It is an arithmetic number, because the mean of its divisors is an integer number (15630276).

Almost surely, 2^52100915 is an apocalyptic number.

52100915 is a deficient number, since it is larger than the sum of its proper divisors (10420189).

52100915 is a wasteful number, since it uses less digits than its factorization.

52100915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10420188.

The product of its (nonzero) digits is 450, while the sum is 23.

The square root of 52100915 is about 7218.0963556883. The cubic root of 52100915 is about 373.4924124533.

The spelling of 52100915 in words is "fifty-two million, one hundred thousand, nine hundred fifteen".