5015421 has 6 divisors (see below), whose sum is σ = 7244510. Its totient is φ = 3343608.

The previous prime is 5015399. The next prime is 5015429. The reversal of 5015421 is 1245105.

It can be written as a sum of positive squares in only one way, i.e., 3944196 + 1071225 = 1986^2 + 1035^2 .

It is not a de Polignac number, because 5015421 - 2⁵ = 5015389 is a prime.

It is a Duffinian number.

It is a Curzon number.

5015421 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 5015394 and 5015403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5015429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 278626 + ... + 278643.

Almost surely, 2^5015421 is an apocalyptic number.

It is an amenable number.

5015421 is a deficient number, since it is larger than the sum of its proper divisors (2229089).

5015421 is a wasteful number, since it uses less digits than its factorization.

5015421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557275 (or 557272 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 5015421 is about 2239.5135632543. The cubic root of 5015421 is about 171.1732111729.

The spelling of 5015421 in words is "five million, fifteen thousand, four hundred twenty-one".