52015647 has 16 divisors (see below), whose sum is σ = 71994240. Its totient is φ = 33365472.

The previous prime is 52015643. The next prime is 52015669. The reversal of 52015647 is 74651025.

It is not a de Polignac number, because 52015647 - 2² = 52015643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52015643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29328 + ... + 31050.

It is an arithmetic number, because the mean of its divisors is an integer number (4499640).

Almost surely, 2^52015647 is an apocalyptic number.

52015647 is a deficient number, since it is larger than the sum of its proper divisors (19978593).

52015647 is a wasteful number, since it uses less digits than its factorization.

52015647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2102.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 52015647 is about 7212.1873935721. The cubic root of 52015647 is about 373.2885494927.

The spelling of 52015647 in words is "fifty-two million, fifteen thousand, six hundred forty-seven".