70857533 has 2 divisors, whose sum is σ = 70857534. Its totient is φ = 70857532.

The previous prime is 70857497. The next prime is 70857569. The reversal of 70857533 is 33575807.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (70857497) and next prime (70857569).

It can be written as a sum of positive squares in only one way, i.e., 69939769 + 917764 = 8363^2 + 958^2 .

It is a cyclic number.

It is not a de Polignac number, because 70857533 - 2⁸ = 70857277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70857583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35428766 + 35428767.

It is an arithmetic number, because the mean of its divisors is an integer number (35428767).

Almost surely, 2^70857533 is an apocalyptic number.

It is an amenable number.

70857533 is a deficient number, since it is larger than the sum of its proper divisors (1).

70857533 is an equidigital number, since it uses as much as digits as its factorization.

70857533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 88200, while the sum is 38.

The square root of 70857533 is about 8417.6916669595. The cubic root of 70857533 is about 413.8046271006.

The spelling of 70857533 in words is "seventy million, eight hundred fifty-seven thousand, five hundred thirty-three".