2505400352473 has 2 divisors, whose sum is σ = 2505400352474. Its totient is φ = 2505400352472.

The previous prime is 2505400352471. The next prime is 2505400352549. The reversal of 2505400352473 is 3742530045052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1592815636624 + 912584715849 = 1262068^2 + 955293^2 .

It is a cyclic number.

It is not a de Polignac number, because 2505400352473 - 2¹ = 2505400352471 is a prime.

Together with 2505400352471, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2505400352471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1252700176236 + 1252700176237.

It is an arithmetic number, because the mean of its divisors is an integer number (1252700176237).

Almost surely, 2^{2505400352473} is an apocalyptic number.

It is an amenable number.

2505400352473 is a deficient number, since it is larger than the sum of its proper divisors (1).

2505400352473 is an equidigital number, since it uses as much as digits as its factorization.

2505400352473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504000, while the sum is 40.

The spelling of 2505400352473 in words is "two trillion, five hundred five billion, four hundred million, three hundred fifty-two thousand, four hundred seventy-three".