5194521 has 6 divisors (see below), whose sum is σ = 7503210. Its totient is φ = 3463008.

The previous prime is 5194507. The next prime is 5194549. The reversal of 5194521 is 1254915.

Added to its reverse (1254915) it gives a triangular number (6449436 = T₃₅₉₁).

5194521 is a `hidden beast` number, since 51 + 94 + 521 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4562496 + 632025 = 2136^2 + 795^2 .

It is not a de Polignac number, because 5194521 - 2⁵ = 5194489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5194561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 288576 + ... + 288593.

It is an arithmetic number, because the mean of its divisors is an integer number (1250535).

Almost surely, 2^5194521 is an apocalyptic number.

It is an amenable number.

5194521 is a deficient number, since it is larger than the sum of its proper divisors (2308689).

5194521 is a wasteful number, since it uses less digits than its factorization.

5194521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577175 (or 577172 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 5194521 is about 2279.1491833577. The cubic root of 5194521 is about 173.1869519405.

Adding to 5194521 its reverse (1254915), we get a triangular number (6449436 = T₃₅₉₁).

The spelling of 5194521 in words is "five million, one hundred ninety-four thousand, five hundred twenty-one".