2552491963 has 4 divisors (see below), whose sum is σ = 2917133680. Its totient is φ = 2187850248.

The previous prime is 2552491957. The next prime is 2552491967. The reversal of 2552491963 is 3691942552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2552491963 - 2¹³ = 2552483771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2552491967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182320848 + ... + 182320861.

It is an arithmetic number, because the mean of its divisors is an integer number (729283420).

Almost surely, 2^2552491963 is an apocalyptic number.

2552491963 is a deficient number, since it is larger than the sum of its proper divisors (364641717).

2552491963 is an equidigital number, since it uses as much as digits as its factorization.

2552491963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364641716.

The product of its digits is 583200, while the sum is 46.

The square root of 2552491963 is about 50522.1927770361. The cubic root of 2552491963 is about 1366.6420975225.

It can be divided in two parts, 2552 and 491963, that added together give a triangular number (494515 = T₉₉₄).

The spelling of 2552491963 in words is "two billion, five hundred fifty-two million, four hundred ninety-one thousand, nine hundred sixty-three".