675620261 has 2 divisors, whose sum is σ = 675620262. Its totient is φ = 675620260.

The previous prime is 675620251. The next prime is 675620287. The reversal of 675620261 is 162026576.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 474150625 + 201469636 = 21775^2 + 14194^2 .

It is a cyclic number.

It is not a de Polignac number, because 675620261 - 2¹⁰ = 675619237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (675620251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337810130 + 337810131.

It is an arithmetic number, because the mean of its divisors is an integer number (337810131).

Almost surely, 2^675620261 is an apocalyptic number.

It is an amenable number.

675620261 is a deficient number, since it is larger than the sum of its proper divisors (1).

675620261 is an equidigital number, since it uses as much as digits as its factorization.

675620261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 675620261 is about 25992.6963010766. The cubic root of 675620261 is about 877.4739287119.

The spelling of 675620261 in words is "six hundred seventy-five million, six hundred twenty thousand, two hundred sixty-one".