53123333540 has 24 divisors (see below), whose sum is σ = 112971143040. Its totient is φ = 20980353888.

The previous prime is 53123333539. The next prime is 53123333561. The reversal of 53123333540 is 4533332135.

It is a junction number, because it is equal to n+sod(n) for n = 53123333497 and 53123333506.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16809602 + ... + 16812761.

It is an arithmetic number, because the mean of its divisors is an integer number (4707130960).

Almost surely, 2^53123333540 is an apocalyptic number.

It is an amenable number.

53123333540 is an abundant number, since it is smaller than the sum of its proper divisors (59847809500).

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

53123333540 is a wasteful number, since it uses less digits than its factorization.

53123333540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33622451 (or 33622449 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 32.

Adding to 53123333540 its reverse (4533332135), we get a palindrome (57656665675).

The spelling of 53123333540 in words is "fifty-three billion, one hundred twenty-three million, three hundred thirty-three thousand, five hundred forty".