2487997551 has 24 divisors (see below), whose sum is σ = 3716027280. Its totient is φ = 1478270976.

The previous prime is 2487997543. The next prime is 2487997553. The reversal of 2487997551 is 1557997842.

It is not a de Polignac number, because 2487997551 - 2³ = 2487997543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2487997491 and 2487997500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2487997553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69906 + ... + 99311.

It is an arithmetic number, because the mean of its divisors is an integer number (154834470).

Almost surely, 2^2487997551 is an apocalyptic number.

2487997551 is a deficient number, since it is larger than the sum of its proper divisors (1228029729).

2487997551 is a wasteful number, since it uses less digits than its factorization.

2487997551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169275 (or 169262 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 57.

The square root of 2487997551 is about 49879.8311043652. The cubic root of 2487997551 is about 1355.0333458567.

The spelling of 2487997551 in words is "two billion, four hundred eighty-seven million, nine hundred ninety-seven thousand, five hundred fifty-one".