70549 has 2 divisors, whose sum is σ = 70550. Its totient is φ = 70548.

The previous prime is 70537. The next prime is 70571. The reversal of 70549 is 94507.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70225 + 324 = 265^2 + 18^2 .

It is a cyclic number.

It is not a de Polignac number, because 70549 - 2¹¹ = 68501 is a prime.

It is a super-2 number, since 2×70549² = 9954322802, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35274 + 35275.

It is an arithmetic number, because the mean of its divisors is an integer number (35275).

2⁷⁰⁵⁴⁹ is an apocalyptic number.

It is an amenable number.

70549 is a deficient number, since it is larger than the sum of its proper divisors (1).

70549 is an equidigital number, since it uses as much as digits as its factorization.

70549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 70549 is about 265.6106172577. The cubic root of 70549 is about 41.3203147230.

The spelling of 70549 in words is "seventy thousand, five hundred forty-nine".