53001519840 has 144 divisors (see below), whose sum is σ = 181001450448. Its totient is φ = 14123286528.

The previous prime is 53001519839. The next prime is 53001519847. The reversal of 53001519840 is 4891510035.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×53001519840² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 53001519795 and 53001519804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53001519847) 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, 2041984 + ... + 2067776.

It is an arithmetic number, because the mean of its divisors is an integer number (1256954517).

Almost surely, 2^53001519840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53001519840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90500725224).

53001519840 is an abundant number, since it is smaller than the sum of its proper divisors (127999930608).

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

53001519840 is a wasteful number, since it uses less digits than its factorization.

53001519840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27241 (or 27230 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The spelling of 53001519840 in words is "fifty-three billion, one million, five hundred nineteen thousand, eight hundred forty".