501601097 has 2 divisors, whose sum is σ = 501601098. Its totient is φ = 501601096.

The previous prime is 501601073. The next prime is 501601117. The reversal of 501601097 is 790106105.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 500819641 + 781456 = 22379^2 + 884^2 .

It is a cyclic number.

It is not a de Polignac number, because 501601097 - 2¹² = 501597001 is a prime.

It is not a weakly prime, because it can be changed into another prime (501600097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250800548 + 250800549.

It is an arithmetic number, because the mean of its divisors is an integer number (250800549).

Almost surely, 2^501601097 is an apocalyptic number.

It is an amenable number.

501601097 is a deficient number, since it is larger than the sum of its proper divisors (1).

501601097 is an equidigital number, since it uses as much as digits as its factorization.

501601097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1890, while the sum is 29.

The square root of 501601097 is about 22396.4527771699. The cubic root of 501601097 is about 794.5468176499.

The spelling of 501601097 in words is "five hundred one million, six hundred one thousand, ninety-seven".