253130250520 has 96 divisors (see below), whose sum is σ = 663281174880. Its totient is φ = 86689075200.

The previous prime is 253130250487. The next prime is 253130250523. The reversal of 253130250520 is 25052031352.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253130250523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1665720 + ... + 1811320.

It is an arithmetic number, because the mean of its divisors is an integer number (6909178905).

Almost surely, 2^253130250520 is an apocalyptic number.

253130250520 is a gapful number since it is divisible by the number (20) 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 253130250520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331640587440).

253130250520 is an abundant number, since it is smaller than the sum of its proper divisors (410150924360).

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

253130250520 is a wasteful number, since it uses less digits than its factorization.

253130250520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146513 (or 146502 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

Adding to 253130250520 its reverse (25052031352), we get a palindrome (278182281872).

The spelling of 253130250520 in words is "two hundred fifty-three billion, one hundred thirty million, two hundred fifty thousand, five hundred twenty".