49935511261 has 2 divisors, whose sum is σ = 49935511262. Its totient is φ = 49935511260.

The previous prime is 49935511169. The next prime is 49935511273. The reversal of 49935511261 is 16211553994.

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., 49673265625 + 262245636 = 222875^2 + 16194^2 .

It is a cyclic number.

It is not a de Polignac number, because 49935511261 - 2¹³ = 49935503069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49935521261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24967755630 + 24967755631.

It is an arithmetic number, because the mean of its divisors is an integer number (24967755631).

Almost surely, 2^49935511261 is an apocalyptic number.

It is an amenable number.

49935511261 is a deficient number, since it is larger than the sum of its proper divisors (1).

49935511261 is an equidigital number, since it uses as much as digits as its factorization.

49935511261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 291600, while the sum is 46.

The spelling of 49935511261 in words is "forty-nine billion, nine hundred thirty-five million, five hundred eleven thousand, two hundred sixty-one".