557902001 has 2 divisors, whose sum is σ = 557902002. Its totient is φ = 557902000.

The previous prime is 557901979. The next prime is 557902061. The reversal of 557902001 is 100209755.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 522808225 + 35093776 = 22865^2 + 5924^2 .

It is a cyclic number.

It is not a de Polignac number, because 557902001 - 2¹⁰ = 557900977 is a prime.

It is a super-2 number, since 2×557902001² = 622509285439608002, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (557902061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278951000 + 278951001.

It is an arithmetic number, because the mean of its divisors is an integer number (278951001).

Almost surely, 2^557902001 is an apocalyptic number.

It is an amenable number.

557902001 is a deficient number, since it is larger than the sum of its proper divisors (1).

557902001 is an equidigital number, since it uses as much as digits as its factorization.

557902001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 557902001 is about 23619.9492167109. The cubic root of 557902001 is about 823.2264322552.

The spelling of 557902001 in words is "five hundred fifty-seven million, nine hundred two thousand, one".