4242250895557 has 2 divisors, whose sum is σ = 4242250895558. Its totient is φ = 4242250895556.

The previous prime is 4242250895551. The next prime is 4242250895587. The reversal of 4242250895557 is 7555980522424.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3300013760836 + 942237134721 = 1816594^2 + 970689^2 .

It is a cyclic number.

It is not a de Polignac number, because 4242250895557 - 2¹¹ = 4242250893509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4242250895551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2121125447778 + 2121125447779.

It is an arithmetic number, because the mean of its divisors is an integer number (2121125447779).

Almost surely, 2^{4242250895557} is an apocalyptic number.

It is an amenable number.

4242250895557 is a deficient number, since it is larger than the sum of its proper divisors (1).

4242250895557 is an equidigital number, since it uses as much as digits as its factorization.

4242250895557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320000, while the sum is 58.

The spelling of 4242250895557 in words is "four trillion, two hundred forty-two billion, two hundred fifty million, eight hundred ninety-five thousand, five hundred fifty-seven".