5023640421 has 48 divisors (see below), whose sum is σ = 7586742592. Its totient is φ = 3200601600.

The previous prime is 5023640407. The next prime is 5023640431. The reversal of 5023640421 is 1240463205.

5023640421 is a `hidden beast` number, since 5 + 0 + 236 + 4 + 0 + 421 = 666.

It is not a de Polignac number, because 5023640421 - 2⁵ = 5023640389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5023640431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5688846 + ... + 5689728.

Almost surely, 2^5023640421 is an apocalyptic number.

It is an amenable number.

5023640421 is a deficient number, since it is larger than the sum of its proper divisors (2563102171).

5023640421 is a wasteful number, since it uses less digits than its factorization.

5023640421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234 (or 1231 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 5023640421 is about 70877.6440141742. The cubic root of 5023640421 is about 1712.6666805350. Note that the first 4 decimals are identical.

The spelling of 5023640421 in words is "five billion, twenty-three million, six hundred forty thousand, four hundred twenty-one".