53531437 has 2 divisors, whose sum is σ = 53531438. Its totient is φ = 53531436.

The previous prime is 53531407. The next prime is 53531441. The reversal of 53531437 is 73413535.

53531437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53275401 + 256036 = 7299^2 + 506^2 .

It is a cyclic number.

It is not a de Polignac number, because 53531437 - 2²³ = 45142829 is a prime.

It is a super-2 number, since 2×53531437² = 5731229494569938, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53531399 and 53531408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53531407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26765718 + 26765719.

It is an arithmetic number, because the mean of its divisors is an integer number (26765719).

Almost surely, 2^53531437 is an apocalyptic number.

It is an amenable number.

53531437 is a deficient number, since it is larger than the sum of its proper divisors (1).

53531437 is an equidigital number, since it uses as much as digits as its factorization.

53531437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18900, while the sum is 31.

The square root of 53531437 is about 7316.5180926449. The cubic root of 53531437 is about 376.8798924126.

The spelling of 53531437 in words is "fifty-three million, five hundred thirty-one thousand, four hundred thirty-seven".