2506836421 has 8 divisors (see below), whose sum is σ = 2723897600. Its totient is φ = 2298287520.

The previous prime is 2506836413. The next prime is 2506836433. The reversal of 2506836421 is 1246386052.

2506836421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2506836421 - 2³ = 2506836413 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 (2506836461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2127456 + ... + 2128633.

It is an arithmetic number, because the mean of its divisors is an integer number (340487200).

Almost surely, 2^2506836421 is an apocalyptic number.

It is an amenable number.

2506836421 is a deficient number, since it is larger than the sum of its proper divisors (217061179).

2506836421 is a wasteful number, since it uses less digits than its factorization.

2506836421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4256139.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 2506836421 is about 50068.3175371412. The cubic root of 2506836421 is about 1358.4448091114. Note that the first 3 decimals are identical.

The spelling of 2506836421 in words is "two billion, five hundred six million, eight hundred thirty-six thousand, four hundred twenty-one".