53499690000 has 375 divisors, whose sum is σ = 194248412017. Its totient is φ = 14211072000.

The previous prime is 53499689993. The next prime is 53499690061. The reversal of 53499690000 is 9699435.

It is a happy number.

The square root of 53499690000 is 231300.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 8447080464 + 45052609536 = 91908^2 + 212256^2 .

It is a tau number, because it is divible by the number of its divisors (375).

It is a super-2 number, since 2×53499690000² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 74 ways as a sum of consecutive naturals, for example, 208169872 + ... + 208170128.

Almost surely, 2^53499690000 is an apocalyptic number.

53499690000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

53499690000 is the 231300-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53499690000

53499690000 is an abundant number, since it is smaller than the sum of its proper divisors (140748722017).

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

53499690000 is an frugal number, since it uses more digits than its factorization.

53499690000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 45.

The spelling of 53499690000 in words is "fifty-three billion, four hundred ninety-nine million, six hundred ninety thousand".