1253867650 has 48 divisors (see below), whose sum is σ = 2668400640. Its totient is φ = 429408000.

The previous prime is 1253867639. The next prime is 1253867651. The reversal of 1253867650 is 567683521.

It is a junction number, because it is equal to n+sod(n) for n = 1253867597 and 1253867606.

It is not an unprimeable number, because it can be changed into a prime (1253867651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 446250 + ... + 449050.

It is an arithmetic number, because the mean of its divisors is an integer number (55591680).

Almost surely, 2^1253867650 is an apocalyptic number.

1253867650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1253867650 is an abundant number, since it is smaller than the sum of its proper divisors (1414532990).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1253867650 is a wasteful number, since it uses less digits than its factorization.

1253867650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4099 (or 4094 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 43.

The square root of 1253867650 is about 35409.9936458622. The cubic root of 1253867650 is about 1078.3272143560.

The spelling of 1253867650 in words is "one billion, two hundred fifty-three million, eight hundred sixty-seven thousand, six hundred fifty".