72253427 has 2 divisors, whose sum is σ = 72253428. Its totient is φ = 72253426.

The previous prime is 72253421. The next prime is 72253477. The reversal of 72253427 is 72435227.

It is a weak prime.

It is an emirp because it is prime and its reverse (72435227) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72253427 - 2¹⁶ = 72187891 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72253393 and 72253402.

It is not a weakly prime, because it can be changed into another prime (72253421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36126713 + 36126714.

It is an arithmetic number, because the mean of its divisors is an integer number (36126714).

Almost surely, 2^72253427 is an apocalyptic number.

72253427 is a deficient number, since it is larger than the sum of its proper divisors (1).

72253427 is an equidigital number, since it uses as much as digits as its factorization.

72253427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23520, while the sum is 32.

The square root of 72253427 is about 8500.2015858449. The cubic root of 72253427 is about 416.5042943506.

The spelling of 72253427 in words is "seventy-two million, two hundred fifty-three thousand, four hundred twenty-seven".