2505235221 has 12 divisors (see below), whose sum is σ = 3620979648. Its totient is φ = 1669092264.

The previous prime is 2505235207. The next prime is 2505235237. The reversal of 2505235221 is 1225325052.

2505235221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2505235221 - 2⁹ = 2505234709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505235241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73675 + ... + 102168.

It is an arithmetic number, because the mean of its divisors is an integer number (301748304).

Almost surely, 2^2505235221 is an apocalyptic number.

It is an amenable number.

2505235221 is a deficient number, since it is larger than the sum of its proper divisors (1115744427).

2505235221 is a wasteful number, since it uses less digits than its factorization.

2505235221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177432 (or 177429 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 2505235221 is about 50052.3248311205. The cubic root of 2505235221 is about 1358.1555195129.

The spelling of 2505235221 in words is "two billion, five hundred five million, two hundred thirty-five thousand, two hundred twenty-one".