73505553049 has 2 divisors, whose sum is σ = 73505553050. Its totient is φ = 73505553048.

The previous prime is 73505552993. The next prime is 73505553073. The reversal of 73505553049 is 94035550537.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71739872649 + 1765680400 = 267843^2 + 42020^2 .

It is a cyclic number.

It is not a de Polignac number, because 73505553049 - 2¹³ = 73505544857 is a prime.

It is not a weakly prime, because it can be changed into another prime (73505563049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36752776524 + 36752776525.

It is an arithmetic number, because the mean of its divisors is an integer number (36752776525).

Almost surely, 2^73505553049 is an apocalyptic number.

It is an amenable number.

73505553049 is a deficient number, since it is larger than the sum of its proper divisors (1).

73505553049 is an equidigital number, since it uses as much as digits as its factorization.

73505553049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1417500, while the sum is 46.

The spelling of 73505553049 in words is "seventy-three billion, five hundred five million, five hundred fifty-three thousand, forty-nine".