7272345503 has 2 divisors, whose sum is σ = 7272345504. Its totient is φ = 7272345502.

The previous prime is 7272345499. The next prime is 7272345529. The reversal of 7272345503 is 3055432727.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (3055432727) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7272345503 - 2² = 7272345499 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7272345593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3636172751 + 3636172752.

It is an arithmetic number, because the mean of its divisors is an integer number (3636172752).

Almost surely, 2^7272345503 is an apocalyptic number.

7272345503 is a deficient number, since it is larger than the sum of its proper divisors (1).

7272345503 is an equidigital number, since it uses as much as digits as its factorization.

7272345503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 176400, while the sum is 38.

The square root of 7272345503 is about 85278.0481894374. The cubic root of 7272345503 is about 1937.4247104868.

The spelling of 7272345503 in words is "seven billion, two hundred seventy-two million, three hundred forty-five thousand, five hundred three".