2504250221 has 8 divisors (see below), whose sum is σ = 2778213600. Its totient is φ = 2238004240.

The previous prime is 2504250209. The next prime is 2504250233. The reversal of 2504250221 is 1220524052.

It is an interprime number because it is at equal distance from previous prime (2504250209) and next prime (2504250233).

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 2504250221 - 2¹⁸ = 2503988077 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 (2504250251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1928666 + ... + 1929963.

It is an arithmetic number, because the mean of its divisors is an integer number (347276700).

Almost surely, 2^2504250221 is an apocalyptic number.

It is an amenable number.

2504250221 is a deficient number, since it is larger than the sum of its proper divisors (273963379).

2504250221 is a wasteful number, since it uses less digits than its factorization.

2504250221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3858699.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 2504250221 is about 50042.4841609607. The cubic root of 2504250221 is about 1357.9774978323.

Adding to 2504250221 its reverse (1220524052), we get a palindrome (3724774273).

The spelling of 2504250221 in words is "two billion, five hundred four million, two hundred fifty thousand, two hundred twenty-one".