5117402421 has 16 divisors (see below), whose sum is σ = 7614744000. Its totient is φ = 3396568464.

The previous prime is 5117402393. The next prime is 5117402431. The reversal of 5117402421 is 1242047115.

It is not a de Polignac number, because 5117402421 - 2⁶ = 5117402357 is a prime.

It is a super-2 number, since 2×5117402421² = 52375615076913322482, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5117402431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 411346 + ... + 423603.

It is an arithmetic number, because the mean of its divisors is an integer number (475921500).

Almost surely, 2^5117402421 is an apocalyptic number.

It is an amenable number.

5117402421 is a deficient number, since it is larger than the sum of its proper divisors (2497341579).

5117402421 is a wasteful number, since it uses less digits than its factorization.

5117402421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835185 (or 835179 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 5117402421 is about 71536.0218421461. The cubic root of 5117402421 is about 1723.2562280159.

Adding to 5117402421 its reverse (1242047115), we get a palindrome (6359449536).

The spelling of 5117402421 in words is "five billion, one hundred seventeen million, four hundred two thousand, four hundred twenty-one".