72219503 has 2 divisors, whose sum is σ = 72219504. Its totient is φ = 72219502.

The previous prime is 72219493. The next prime is 72219527. The reversal of 72219503 is 30591227.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72219503 - 2¹⁰ = 72218479 is a prime.

It is a super-2 number, since 2×72219503² = 10431313227134018, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72219533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36109751 + 36109752.

It is an arithmetic number, because the mean of its divisors is an integer number (36109752).

Almost surely, 2^72219503 is an apocalyptic number.

72219503 is a deficient number, since it is larger than the sum of its proper divisors (1).

72219503 is an equidigital number, since it uses as much as digits as its factorization.

72219503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 72219503 is about 8498.2058694762. The cubic root of 72219503 is about 416.4390992718.

The spelling of 72219503 in words is "seventy-two million, two hundred nineteen thousand, five hundred three".