52120530035040 has 192 divisors, whose sum is σ = 168820895464704. Its totient is φ = 13506808670208.

The previous prime is 52120530035017. The next prime is 52120530035069. The reversal of 52120530035040 is 4053003502125.

It is a super-2 number, since 2×52120530035040² (a number of 28 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 52120530034989 and 52120530035007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12913207 + ... + 16461833.

It is an arithmetic number, because the mean of its divisors is an integer number (879275497212).

Almost surely, 2^{52120530035040} 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 52120530035040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84410447732352).

52120530035040 is an abundant number, since it is smaller than the sum of its proper divisors (116700365429664).

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

52120530035040 is a wasteful number, since it uses less digits than its factorization.

52120530035040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3549509 (or 3549501 counting only the distinct ones).

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

Adding to 52120530035040 its reverse (4053003502125), we get a palindrome (56173533537165).

The spelling of 52120530035040 in words is "fifty-two trillion, one hundred twenty billion, five hundred thirty million, thirty-five thousand, forty".