254402032323557 has 2 divisors, whose sum is σ = 254402032323558. Its totient is φ = 254402032323556.

The previous prime is 254402032323497. The next prime is 254402032323611. The reversal of 254402032323557 is 755323230204452.

254402032323557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 217862352745921 + 36539679577636 = 14760161^2 + 6044806^2 .

It is a cyclic number.

It is not a de Polignac number, because 254402032323557 - 2¹⁰ = 254402032322533 is a prime.

It is a super-2 number, since 2×254402032323557² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254402032223557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127201016161778 + 127201016161779.

It is an arithmetic number, because the mean of its divisors is an integer number (127201016161779).

Almost surely, 2^{254402032323557} is an apocalyptic number.

It is an amenable number.

254402032323557 is a deficient number, since it is larger than the sum of its proper divisors (1).

254402032323557 is an equidigital number, since it uses as much as digits as its factorization.

254402032323557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048000, while the sum is 47.

The spelling of 254402032323557 in words is "two hundred fifty-four trillion, four hundred two billion, thirty-two million, three hundred twenty-three thousand, five hundred fifty-seven".