5249450421 has 12 divisors (see below), whose sum is σ = 7667737740. Its totient is φ = 3460311360.

The previous prime is 5249450419. The next prime is 5249450447. The reversal of 5249450421 is 1240549425.

It is a happy number.

5249450421 is a `hidden beast` number, since 524 + 94 + 5 + 0 + 42 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1529670321 + 3719780100 = 39111^2 + 60990^2 .

It is not a de Polignac number, because 5249450421 - 2¹ = 5249450419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5249450461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3276010 + ... + 3277611.

It is an arithmetic number, because the mean of its divisors is an integer number (638978145).

Almost surely, 2^5249450421 is an apocalyptic number.

It is an amenable number.

5249450421 is a deficient number, since it is larger than the sum of its proper divisors (2418287319).

5249450421 is a wasteful number, since it uses less digits than its factorization.

5249450421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6553716 (or 6553713 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 5249450421 is about 72453.0911762914. The cubic root of 5249450421 is about 1737.9526742556.

Adding to 5249450421 its reverse (1240549425), we get a palindrome (6489999846).

The spelling of 5249450421 in words is "five billion, two hundred forty-nine million, four hundred fifty thousand, four hundred twenty-one".