49111611553 has 2 divisors, whose sum is σ = 49111611554. Its totient is φ = 49111611552.

The previous prime is 49111611517. The next prime is 49111611671. The reversal of 49111611553 is 35511611194.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47904952384 + 1206659169 = 218872^2 + 34737^2 .

It is a cyclic number.

It is not a de Polignac number, because 49111611553 - 2¹³ = 49111603361 is a prime.

It is not a weakly prime, because it can be changed into another prime (49111611953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24555805776 + 24555805777.

It is an arithmetic number, because the mean of its divisors is an integer number (24555805777).

Almost surely, 2^49111611553 is an apocalyptic number.

It is an amenable number.

49111611553 is a deficient number, since it is larger than the sum of its proper divisors (1).

49111611553 is an equidigital number, since it uses as much as digits as its factorization.

49111611553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16200, while the sum is 37.

The spelling of 49111611553 in words is "forty-nine billion, one hundred eleven million, six hundred eleven thousand, five hundred fifty-three".