53512450000 has 60 divisors (see below), whose sum is σ = 129592291500. Its totient is φ = 21404960000.

The previous prime is 53512449989. The next prime is 53512450007. The reversal of 53512450000 is 5421535.

It can be written as a sum of positive squares in 6 ways, for example, as 42847344016 + 10665105984 = 206996^2 + 103272^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53512450007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 485125 + ... + 585124.

It is an arithmetic number, because the mean of its divisors is an integer number (2159871525).

Almost surely, 2^53512450000 is an apocalyptic number.

53512450000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53512450000 is an abundant number, since it is smaller than the sum of its proper divisors (76079841500).

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

53512450000 is an equidigital number, since it uses as much as digits as its factorization.

53512450000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070282 (or 1070256 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

Adding to 53512450000 its reverse (5421535), we get a palindrome (53517871535).

The spelling of 53512450000 in words is "fifty-three billion, five hundred twelve million, four hundred fifty thousand".