53245587 has 4 divisors (see below), whose sum is σ = 70994120. Its totient is φ = 35497056.

The previous prime is 53245583. The next prime is 53245589. The reversal of 53245587 is 78554235.

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

It is not a de Polignac number, because 53245587 - 2² = 53245583 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53245583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8874262 + ... + 8874267.

It is an arithmetic number, because the mean of its divisors is an integer number (17748530).

Almost surely, 2^53245587 is an apocalyptic number.

53245587 is a deficient number, since it is larger than the sum of its proper divisors (17748533).

53245587 is a wasteful number, since it uses less digits than its factorization.

53245587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17748532.

The product of its digits is 168000, while the sum is 39.

The square root of 53245587 is about 7296.9573796206. The cubic root of 53245587 is about 376.2078670863.

The spelling of 53245587 in words is "fifty-three million, two hundred forty-five thousand, five hundred eighty-seven".