2506681550 has 96 divisors (see below), whose sum is σ = 4950540288. Its totient is φ = 943125120.

The previous prime is 2506681547. The next prime is 2506681559. The reversal of 2506681550 is 551866052.

It is a super-2 number, since 2×2506681550² = 12566904786220805000, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2506681559) 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 47 ways as a sum of consecutive naturals, for example, 11042537 + ... + 11042763.

It is an arithmetic number, because the mean of its divisors is an integer number (51568128).

Almost surely, 2^2506681550 is an apocalyptic number.

2506681550 is a deficient number, since it is larger than the sum of its proper divisors (2443858738).

2506681550 is a wasteful number, since it uses less digits than its factorization.

2506681550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450 (or 445 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 38.

The square root of 2506681550 is about 50066.7709164472. The cubic root of 2506681550 is about 1358.4168338731.

The spelling of 2506681550 in words is "two billion, five hundred six million, six hundred eighty-one thousand, five hundred fifty".