2503023221 has 8 divisors (see below), whose sum is σ = 2519475840. Its totient is φ = 2486588368.

The previous prime is 2503023191. The next prime is 2503023233. The reversal of 2503023221 is 1223203052.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2503023221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2503023193 and 2503023202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2503023251) 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, 390440 + ... + 396798.

It is an arithmetic number, because the mean of its divisors is an integer number (314934480).

Almost surely, 2^2503023221 is an apocalyptic number.

It is an amenable number.

2503023221 is a deficient number, since it is larger than the sum of its proper divisors (16452619).

2503023221 is a wasteful number, since it uses less digits than its factorization.

2503023221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8883.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 2503023221 is about 50030.2230756570. The cubic root of 2503023221 is about 1357.7556735401.

Adding to 2503023221 its reverse (1223203052), we get a palindrome (3726226273).

The spelling of 2503023221 in words is "two billion, five hundred three million, twenty-three thousand, two hundred twenty-one".