53440005220 has 48 divisors (see below), whose sum is σ = 128271306240. Its totient is φ = 18320102784.

The previous prime is 53440005181. The next prime is 53440005221. The reversal of 53440005220 is 2250004435.

It is a super-3 number, since 3×53440005220³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (53440005221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1534966 + ... + 1569394.

It is an arithmetic number, because the mean of its divisors is an integer number (2672318880).

Almost surely, 2^53440005220 is an apocalyptic number.

It is an amenable number.

53440005220 is an abundant number, since it is smaller than the sum of its proper divisors (74831301020).

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

53440005220 is a wasteful number, since it uses less digits than its factorization.

53440005220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45532 (or 45530 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

Adding to 53440005220 its reverse (2250004435), we get a palindrome (55690009655).

The spelling of 53440005220 in words is "fifty-three billion, four hundred forty million, five thousand, two hundred twenty".