53542321500 has 96 divisors (see below), whose sum is σ = 156872491776. Its totient is φ = 14190292800.

The previous prime is 53542321487. The next prime is 53542321501. The reversal of 53542321500 is 512324535.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53542321501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135007 + ... + 353993.

It is an arithmetic number, because the mean of its divisors is an integer number (1634088456).

Almost surely, 2^53542321500 is an apocalyptic number.

53542321500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53542321500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78436245888).

53542321500 is an abundant number, since it is smaller than the sum of its proper divisors (103330170276).

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

53542321500 is a wasteful number, since it uses less digits than its factorization.

53542321500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219172 (or 219160 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The spelling of 53542321500 in words is "fifty-three billion, five hundred forty-two million, three hundred twenty-one thousand, five hundred".