52421534000 has 320 divisors, whose sum is σ = 143462067840. Its totient is φ = 18360320000.

The previous prime is 52421533951. The next prime is 52421534003. The reversal of 52421534000 is 43512425.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (52421534003) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 80277674 + ... + 80278326.

It is an arithmetic number, because the mean of its divisors is an integer number (448318962).

Almost surely, 2^52421534000 is an apocalyptic number.

52421534000 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 52421534000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71731033920).

52421534000 is an abundant number, since it is smaller than the sum of its proper divisors (91040533840).

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

52421534000 is a wasteful number, since it uses less digits than its factorization.

52421534000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817 (or 801 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The spelling of 52421534000 in words is "fifty-two billion, four hundred twenty-one million, five hundred thirty-four thousand".