1253055240 has 96 divisors (see below), whose sum is σ = 4093128000. Its totient is φ = 332449920.

The previous prime is 1253055197. The next prime is 1253055241. The reversal of 1253055240 is 425503521.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1253055241) 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, 62895 + ... + 80385.

It is an arithmetic number, because the mean of its divisors is an integer number (42636750).

Almost surely, 2^1253055240 is an apocalyptic number.

1253055240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1253055240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2046564000).

1253055240 is an abundant number, since it is smaller than the sum of its proper divisors (2840072760).

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

1253055240 is a wasteful number, since it uses less digits than its factorization.

1253055240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17707 (or 17700 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 1253055240 is about 35398.5203080581. The cubic root of 1253055240 is about 1078.0942729491.

Adding to 1253055240 its reverse (425503521), we get a palindrome (1678558761).

The spelling of 1253055240 in words is "one billion, two hundred fifty-three million, fifty-five thousand, two hundred forty".