52047645 has 32 divisors (see below), whose sum is σ = 90720000. Its totient is φ = 25327104.

The previous prime is 52047629. The next prime is 52047647. The reversal of 52047645 is 54674025.

It is not a de Polignac number, because 52047645 - 2⁴ = 52047629 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52047647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15856 + ... + 18854.

It is an arithmetic number, because the mean of its divisors is an integer number (2835000).

Almost surely, 2^52047645 is an apocalyptic number.

It is an amenable number.

52047645 is a deficient number, since it is larger than the sum of its proper divisors (38672355).

52047645 is a wasteful number, since it uses less digits than its factorization.

52047645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3109.

The product of its (nonzero) digits is 33600, while the sum is 33.

The square root of 52047645 is about 7214.4053809029. The cubic root of 52047645 is about 373.3650779944.

The spelling of 52047645 in words is "fifty-two million, forty-seven thousand, six hundred forty-five".