53343345437 has 2 divisors, whose sum is σ = 53343345438. Its totient is φ = 53343345436.

The previous prime is 53343345413. The next prime is 53343345457. The reversal of 53343345437 is 73454334335.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52952452996 + 390892441 = 230114^2 + 19771^2 .

It is a cyclic number.

It is not a de Polignac number, because 53343345437 - 2²² = 53339151133 is a prime.

It is a super-2 number, since 2×53343345437² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53343345457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26671672718 + 26671672719.

It is an arithmetic number, because the mean of its divisors is an integer number (26671672719).

Almost surely, 2^53343345437 is an apocalyptic number.

It is an amenable number.

53343345437 is a deficient number, since it is larger than the sum of its proper divisors (1).

53343345437 is an equidigital number, since it uses as much as digits as its factorization.

53343345437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2721600, while the sum is 44.

The spelling of 53343345437 in words is "fifty-three billion, three hundred forty-three million, three hundred forty-five thousand, four hundred thirty-seven".