2499052493557 has 2 divisors, whose sum is σ = 2499052493558. Its totient is φ = 2499052493556.

The previous prime is 2499052493537. The next prime is 2499052493591. The reversal of 2499052493557 is 7553942509942.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1611615016036 + 887437477521 = 1269494^2 + 942039^2 .

It is a cyclic number.

It is not a de Polignac number, because 2499052493557 - 2¹⁵ = 2499052460789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2499052493537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1249526246778 + 1249526246779.

It is an arithmetic number, because the mean of its divisors is an integer number (1249526246779).

Almost surely, 2^{2499052493557} is an apocalyptic number.

It is an amenable number.

2499052493557 is a deficient number, since it is larger than the sum of its proper divisors (1).

2499052493557 is an equidigital number, since it uses as much as digits as its factorization.

2499052493557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472000, while the sum is 64.

The spelling of 2499052493557 in words is "two trillion, four hundred ninety-nine billion, fifty-two million, four hundred ninety-three thousand, five hundred fifty-seven".