53544949 has 2 divisors, whose sum is σ = 53544950. Its totient is φ = 53544948.

The previous prime is 53544947. The next prime is 53544973. The reversal of 53544949 is 94944535.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49210225 + 4334724 = 7015^2 + 2082^2 .

It is a cyclic number.

It is not a de Polignac number, because 53544949 - 2¹ = 53544947 is a prime.

Together with 53544947, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53544947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26772474 + 26772475.

It is an arithmetic number, because the mean of its divisors is an integer number (26772475).

Almost surely, 2^53544949 is an apocalyptic number.

It is an amenable number.

53544949 is a deficient number, since it is larger than the sum of its proper divisors (1).

53544949 is an equidigital number, since it uses as much as digits as its factorization.

53544949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 43.

The square root of 53544949 is about 7317.4414244324. The cubic root of 53544949 is about 376.9115994679.

The spelling of 53544949 in words is "fifty-three million, five hundred forty-four thousand, nine hundred forty-nine".