70528573 has 2 divisors, whose sum is σ = 70528574. Its totient is φ = 70528572.

The previous prime is 70528553. The next prime is 70528583. The reversal of 70528573 is 37582507.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66945124 + 3583449 = 8182^2 + 1893^2 .

It is an emirp because it is prime and its reverse (37582507) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70528573 - 2⁹ = 70528061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70528543) 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, 35264286 + 35264287.

It is an arithmetic number, because the mean of its divisors is an integer number (35264287).

Almost surely, 2^70528573 is an apocalyptic number.

It is an amenable number.

70528573 is a deficient number, since it is larger than the sum of its proper divisors (1).

70528573 is an equidigital number, since it uses as much as digits as its factorization.

70528573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 70528573 is about 8398.1291368971. The cubic root of 70528573 is about 413.1632632937.

It can be divided in two parts, 7052 and 8573, that added together give a 6-th power (15625 = 5⁶).

The spelling of 70528573 in words is "seventy million, five hundred twenty-eight thousand, five hundred seventy-three".