53006247 has 12 divisors (see below), whose sum is σ = 87502480. Its totient is φ = 30289248.

The previous prime is 53006243. The next prime is 53006267. The reversal of 53006247 is 74260035.

It is a happy number.

53006247 is a `hidden beast` number, since 5 + 30 + 0 + 624 + 7 = 666.

It is not a de Polignac number, because 53006247 - 2² = 53006243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53006247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53006243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 420622 + ... + 420747.

Almost surely, 2^53006247 is an apocalyptic number.

53006247 is a deficient number, since it is larger than the sum of its proper divisors (34496233).

53006247 is a wasteful number, since it uses less digits than its factorization.

53006247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841382 (or 841379 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 53006247 is about 7280.5389223601. The cubic root of 53006247 is about 375.6433330292.

The spelling of 53006247 in words is "fifty-three million, six thousand, two hundred forty-seven".