52987091 has 4 divisors (see below), whose sum is σ = 54696384. Its totient is φ = 51277800.

The previous prime is 52987069. The next prime is 52987097. The reversal of 52987091 is 19078925.

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 52987091 - 2⁶ = 52987027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52987097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 854600 + ... + 854661.

It is an arithmetic number, because the mean of its divisors is an integer number (13674096).

Almost surely, 2^52987091 is an apocalyptic number.

52987091 is a deficient number, since it is larger than the sum of its proper divisors (1709293).

52987091 is a wasteful number, since it uses less digits than its factorization.

52987091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709292.

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 52987091 is about 7279.2232415279. The cubic root of 52987091 is about 375.5980761579.

The spelling of 52987091 in words is "fifty-two million, nine hundred eighty-seven thousand, ninety-one".