87544253 has 2 divisors, whose sum is σ = 87544254. Its totient is φ = 87544252.

The previous prime is 87544241. The next prime is 87544313. The reversal of 87544253 is 35244578.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59644729 + 27899524 = 7723^2 + 5282^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87544253 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87544453) by changing a digit.

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 as a sum of consecutive naturals, namely, 43772126 + 43772127.

It is an arithmetic number, because the mean of its divisors is an integer number (43772127).

Almost surely, 2^87544253 is an apocalyptic number.

It is an amenable number.

87544253 is a deficient number, since it is larger than the sum of its proper divisors (1).

87544253 is an equidigital number, since it uses as much as digits as its factorization.

87544253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 134400, while the sum is 38.

The square root of 87544253 is about 9356.5085902809. The cubic root of 87544253 is about 444.0268309544.

The spelling of 87544253 in words is "eighty-seven million, five hundred forty-four thousand, two hundred fifty-three".