52161547 has 2 divisors, whose sum is σ = 52161548. Its totient is φ = 52161546.

The previous prime is 52161533. The next prime is 52161563. The reversal of 52161547 is 74516125.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52161547 - 2⁷ = 52161419 is a prime.

It is not a weakly prime, because it can be changed into another prime (52161047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26080773 + 26080774.

It is an arithmetic number, because the mean of its divisors is an integer number (26080774).

Almost surely, 2^52161547 is an apocalyptic number.

52161547 is a deficient number, since it is larger than the sum of its proper divisors (1).

52161547 is an equidigital number, since it uses as much as digits as its factorization.

52161547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8400, while the sum is 31.

The square root of 52161547 is about 7222.2951338200. The cubic root of 52161547 is about 373.6372391682.

The spelling of 52161547 in words is "fifty-two million, one hundred sixty-one thousand, five hundred forty-seven".