52620647 has 4 divisors (see below), whose sum is σ = 52637136. Its totient is φ = 52604160.

The previous prime is 52620629. The next prime is 52620653. The reversal of 52620647 is 74602625.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52620647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52620677) 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, 1754 + ... + 10407.

It is an arithmetic number, because the mean of its divisors is an integer number (13159284).

Almost surely, 2^52620647 is an apocalyptic number.

52620647 is a deficient number, since it is larger than the sum of its proper divisors (16489).

52620647 is a wasteful number, since it uses less digits than its factorization.

52620647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16488.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 52620647 is about 7254.0090294953. The cubic root of 52620647 is about 374.7302284939.

The spelling of 52620647 in words is "fifty-two million, six hundred twenty thousand, six hundred forty-seven".