5311142250 has 64 divisors (see below), whose sum is σ = 13345862400. Its totient is φ = 1406769600.

The previous prime is 5311142203. The next prime is 5311142297. The reversal of 5311142250 is 522411135.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (5311142203) and next prime (5311142297).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5311142250.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87987 + ... + 135513.

It is an arithmetic number, because the mean of its divisors is an integer number (208529100).

Almost surely, 2^5311142250 is an apocalyptic number.

5311142250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 5311142250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6672931200).

5311142250 is an abundant number, since it is smaller than the sum of its proper divisors (8034720150).

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

5311142250 is a wasteful number, since it uses less digits than its factorization.

5311142250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47696 (or 47686 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 5311142250 is about 72877.5840022157. The cubic root of 5311142250 is about 1744.7343487143.

Adding to 5311142250 its reverse (522411135), we get a palindrome (5833553385).

The spelling of 5311142250 in words is "five billion, three hundred eleven million, one hundred forty-two thousand, two hundred fifty".