53404770437 has 2 divisors, whose sum is σ = 53404770438. Its totient is φ = 53404770436.

The previous prime is 53404770281. The next prime is 53404770493. The reversal of 53404770437 is 73407740435.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33939219076 + 19465551361 = 184226^2 + 139519^2 .

It is a cyclic number.

It is not a de Polignac number, because 53404770437 - 2¹⁰ = 53404769413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53404770137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26702385218 + 26702385219.

It is an arithmetic number, because the mean of its divisors is an integer number (26702385219).

Almost surely, 2^53404770437 is an apocalyptic number.

It is an amenable number.

53404770437 is a deficient number, since it is larger than the sum of its proper divisors (1).

53404770437 is an equidigital number, since it uses as much as digits as its factorization.

53404770437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 987840, while the sum is 44.

The spelling of 53404770437 in words is "fifty-three billion, four hundred four million, seven hundred seventy thousand, four hundred thirty-seven".