675521101 has 2 divisors, whose sum is σ = 675521102. Its totient is φ = 675521100.

The previous prime is 675521089. The next prime is 675521123. The reversal of 675521101 is 101125576.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 454968900 + 220552201 = 21330^2 + 14851^2 .

It is a cyclic number.

It is not a de Polignac number, because 675521101 - 2⁷ = 675520973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 675521101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (675521131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337760550 + 337760551.

It is an arithmetic number, because the mean of its divisors is an integer number (337760551).

Almost surely, 2^675521101 is an apocalyptic number.

It is an amenable number.

675521101 is a deficient number, since it is larger than the sum of its proper divisors (1).

675521101 is an equidigital number, since it uses as much as digits as its factorization.

675521101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2100, while the sum is 28.

The square root of 675521101 is about 25990.7887721785. The cubic root of 675521101 is about 877.4309980022.

Adding to 675521101 its reverse (101125576), we get a palindrome (776646677).

The spelling of 675521101 in words is "six hundred seventy-five million, five hundred twenty-one thousand, one hundred one".