2497503321 has 16 divisors (see below), whose sum is σ = 3706124800. Its totient is φ = 1662248304.

The previous prime is 2497503319. The next prime is 2497503347. The reversal of 2497503321 is 1233057942.

It is not a de Polignac number, because 2497503321 - 2¹ = 2497503319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2497503311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59806 + ... + 92583.

It is an arithmetic number, because the mean of its divisors is an integer number (231632800).

Almost surely, 2^2497503321 is an apocalyptic number.

It is an amenable number.

2497503321 is a deficient number, since it is larger than the sum of its proper divisors (1208621479).

2497503321 is a wasteful number, since it uses less digits than its factorization.

2497503321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153005 (or 152999 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 2497503321 is about 49975.0269734795. The cubic root of 2497503321 is about 1356.7568558493.

The spelling of 2497503321 in words is "two billion, four hundred ninety-seven million, five hundred three thousand, three hundred twenty-one".