40210550257 has 2 divisors, whose sum is σ = 40210550258. Its totient is φ = 40210550256.

The previous prime is 40210550243. The next prime is 40210550267. The reversal of 40210550257 is 75205501204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20572451761 + 19638098496 = 143431^2 + 140136^2 .

It is a cyclic number.

It is not a de Polignac number, because 40210550257 - 2⁷ = 40210550129 is a prime.

It is not a weakly prime, because it can be changed into another prime (40210550267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20105275128 + 20105275129.

It is an arithmetic number, because the mean of its divisors is an integer number (20105275129).

Almost surely, 2^40210550257 is an apocalyptic number.

It is an amenable number.

40210550257 is a deficient number, since it is larger than the sum of its proper divisors (1).

40210550257 is an equidigital number, since it uses as much as digits as its factorization.

40210550257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14000, while the sum is 31.

The spelling of 40210550257 in words is "forty billion, two hundred ten million, five hundred fifty thousand, two hundred fifty-seven".