53155547 has 2 divisors, whose sum is σ = 53155548. Its totient is φ = 53155546.

The previous prime is 53155523. The next prime is 53155561. The reversal of 53155547 is 74555135.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53155547 - 2¹² = 53151451 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53155577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26577773 + 26577774.

It is an arithmetic number, because the mean of its divisors is an integer number (26577774).

Almost surely, 2^53155547 is an apocalyptic number.

53155547 is a deficient number, since it is larger than the sum of its proper divisors (1).

53155547 is an equidigital number, since it uses as much as digits as its factorization.

53155547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52500, while the sum is 35.

The square root of 53155547 is about 7290.7850743250. The cubic root of 53155547 is about 375.9956875731.

The spelling of 53155547 in words is "fifty-three million, one hundred fifty-five thousand, five hundred forty-seven".