53123007449 has 2 divisors, whose sum is σ = 53123007450. Its totient is φ = 53123007448.

The previous prime is 53123007433. The next prime is 53123007473. The reversal of 53123007449 is 94470032135.

53123007449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38793241600 + 14329765849 = 196960^2 + 119707^2 .

It is a cyclic number.

It is not a de Polignac number, because 53123007449 - 2⁴ = 53123007433 is a prime.

It is not a weakly prime, because it can be changed into another prime (53123006449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26561503724 + 26561503725.

It is an arithmetic number, because the mean of its divisors is an integer number (26561503725).

Almost surely, 2^53123007449 is an apocalyptic number.

It is an amenable number.

53123007449 is a deficient number, since it is larger than the sum of its proper divisors (1).

53123007449 is an equidigital number, since it uses as much as digits as its factorization.

53123007449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 38.

The spelling of 53123007449 in words is "fifty-three billion, one hundred twenty-three million, seven thousand, four hundred forty-nine".