49519155841 has 9 divisors (see below), whose sum is σ = 49820270409. Its totient is φ = 49219854336.

The previous prime is 49519155839. The next prime is 49519155853. The reversal of 49519155841 is 14855191594.

The square root of 49519155841 is 222529.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 75186241 + 49443969600 = 8671^2 + 222360^2 .

It is not a de Polignac number, because 49519155841 - 2¹ = 49519155839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49519155811) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 42947521 + ... + 42948673.

It is an arithmetic number, because the mean of its divisors is an integer number (5535585601).

Almost surely, 2^49519155841 is an apocalyptic number.

49519155841 is the 222529-th square number.

49519155841 is the 111265-th centered octagonal number.

It is an amenable number.

49519155841 is a deficient number, since it is larger than the sum of its proper divisors (301114568).

49519155841 is an frugal number, since it uses more digits than its factorization.

49519155841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2692 (or 1346 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 52.

The spelling of 49519155841 in words is "forty-nine billion, five hundred nineteen million, one hundred fifty-five thousand, eight hundred forty-one".