5249161449 has 32 divisors (see below), whose sum is σ = 8891360000. Its totient is φ = 2998207872.

The previous prime is 5249161441. The next prime is 5249161471. The reversal of 5249161449 is 9441619425.

5249161449 is a `hidden beast` number, since 5 + 2 + 49 + 161 + 449 = 666.

It is not a de Polignac number, because 5249161449 - 2³ = 5249161441 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5249161441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 571707 + ... + 580815.

It is an arithmetic number, because the mean of its divisors is an integer number (277855000).

Almost surely, 2^5249161449 is an apocalyptic number.

It is an amenable number.

5249161449 is a deficient number, since it is larger than the sum of its proper divisors (3642198551).

5249161449 is a wasteful number, since it uses less digits than its factorization.

5249161449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12174 (or 12168 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 5249161449 is about 72451.0969482174. The cubic root of 5249161449 is about 1737.9207833695.

The spelling of 5249161449 in words is "five billion, two hundred forty-nine million, one hundred sixty-one thousand, four hundred forty-nine".