50025250021 has 4 divisors (see below), whose sum is σ = 50032198432. Its totient is φ = 50018301612.

The previous prime is 50025250003. The next prime is 50025250069. The reversal of 50025250021 is 12005252005.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50025250021 - 2¹³ = 50025241829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50025249974 and 50025250001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50025250321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3463395 + ... + 3477808.

It is an arithmetic number, because the mean of its divisors is an integer number (12508049608).

Almost surely, 2^50025250021 is an apocalyptic number.

It is an amenable number.

50025250021 is a deficient number, since it is larger than the sum of its proper divisors (6948411).

50025250021 is an equidigital number, since it uses as much as digits as its factorization.

50025250021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6948410.

The product of its (nonzero) digits is 1000, while the sum is 22.

The spelling of 50025250021 in words is "fifty billion, twenty-five million, two hundred fifty thousand, twenty-one".