2542551173 has 2 divisors, whose sum is σ = 2542551174. Its totient is φ = 2542551172.

The previous prime is 2542551061. The next prime is 2542551223. The reversal of 2542551173 is 3711552452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2088307204 + 454243969 = 45698^2 + 21313^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2542551173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2542551373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1271275586 + 1271275587.

It is an arithmetic number, because the mean of its divisors is an integer number (1271275587).

Almost surely, 2^2542551173 is an apocalyptic number.

It is an amenable number.

2542551173 is a deficient number, since it is larger than the sum of its proper divisors (1).

2542551173 is an equidigital number, since it uses as much as digits as its factorization.

2542551173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42000, while the sum is 35.

The square root of 2542551173 is about 50423.7163743412. The cubic root of 2542551173 is about 1364.8656405028.

The spelling of 2542551173 in words is "two billion, five hundred forty-two million, five hundred fifty-one thousand, one hundred seventy-three".