1283872550 has 12 divisors (see below), whose sum is σ = 2388003036. Its totient is φ = 513549000.

The previous prime is 1283872547. The next prime is 1283872561. The reversal of 1283872550 is 552783821.

It is a junction number, because it is equal to n+sod(n) for n = 1283872498 and 1283872507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12838676 + ... + 12838775.

It is an arithmetic number, because the mean of its divisors is an integer number (199000253).

Almost surely, 2^1283872550 is an apocalyptic number.

1283872550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1283872550 is a deficient number, since it is larger than the sum of its proper divisors (1104130486).

1283872550 is a wasteful number, since it uses less digits than its factorization.

1283872550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25677463 (or 25677458 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 1283872550 is about 35831.1672988754. The cubic root of 1283872550 is about 1086.8609148569.

The spelling of 1283872550 in words is "one billion, two hundred eighty-three million, eight hundred seventy-two thousand, five hundred fifty".