72650051 has 2 divisors, whose sum is σ = 72650052. Its totient is φ = 72650050.

The previous prime is 72650041. The next prime is 72650057. The reversal of 72650051 is 15005627.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72650051 - 2⁶ = 72649987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72650051.

It is not a weakly prime, because it can be changed into another prime (72650057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36325025 + 36325026.

It is an arithmetic number, because the mean of its divisors is an integer number (36325026).

Almost surely, 2^72650051 is an apocalyptic number.

72650051 is a deficient number, since it is larger than the sum of its proper divisors (1).

72650051 is an equidigital number, since it uses as much as digits as its factorization.

72650051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 72650051 is about 8523.4999266733. The cubic root of 72650051 is about 417.2650160338.

Adding to 72650051 its reverse (15005627), we get a palindrome (87655678).

The spelling of 72650051 in words is "seventy-two million, six hundred fifty thousand, fifty-one".