72570011 has 2 divisors, whose sum is σ = 72570012. Its totient is φ = 72570010.

The previous prime is 72569999. The next prime is 72570067. The reversal of 72570011 is 11007527.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72570011 - 2¹⁴ = 72553627 is a prime.

It is equal to p_4260317 and since 72570011 and 4260317 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (72570811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36285005 + 36285006.

It is an arithmetic number, because the mean of its divisors is an integer number (36285006).

Almost surely, 2^72570011 is an apocalyptic number.

72570011 is a deficient number, since it is larger than the sum of its proper divisors (1).

72570011 is an equidigital number, since it uses as much as digits as its factorization.

72570011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 490, while the sum is 23.

The square root of 72570011 is about 8518.8033784094. The cubic root of 72570011 is about 417.1117233474. Note that the first 3 decimals are identical.

Adding to 72570011 its reverse (11007527), we get a palindrome (83577538).

The spelling of 72570011 in words is "seventy-two million, five hundred seventy thousand, eleven".