49976553197 has 2 divisors, whose sum is σ = 49976553198. Its totient is φ = 49976553196.

The previous prime is 49976553181. The next prime is 49976553281. The reversal of 49976553197 is 79135567994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48896707876 + 1079845321 = 221126^2 + 32861^2 .

It is a cyclic number.

It is not a de Polignac number, because 49976553197 - 2⁴ = 49976553181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49970553197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24988276598 + 24988276599.

It is an arithmetic number, because the mean of its divisors is an integer number (24988276599).

Almost surely, 2^49976553197 is an apocalyptic number.

It is an amenable number.

49976553197 is a deficient number, since it is larger than the sum of its proper divisors (1).

49976553197 is an equidigital number, since it uses as much as digits as its factorization.

49976553197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64297800, while the sum is 65.

The spelling of 49976553197 in words is "forty-nine billion, nine hundred seventy-six million, five hundred fifty-three thousand, one hundred ninety-seven".