52021142132520 has 128 divisors (see below), whose sum is σ = 179211590208000. Its totient is φ = 11947439335680.

The previous prime is 52021142132507. The next prime is 52021142132567. The reversal of 52021142132520 is 2523124112025.

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

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, 1037079030 + ... + 1037129189.

It is an arithmetic number, because the mean of its divisors is an integer number (1400090548500).

Almost surely, 2^{52021142132520} is an apocalyptic number.

It is an amenable number.

52021142132520 is an abundant number, since it is smaller than the sum of its proper divisors (127190448075480).

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

52021142132520 is a wasteful number, since it uses less digits than its factorization.

52021142132520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2074208263 (or 2074208259 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 52021142132520 its reverse (2523124112025), we get a palindrome (54544266244545).

The spelling of 52021142132520 in words is "fifty-two trillion, twenty-one billion, one hundred forty-two million, one hundred thirty-two thousand, five hundred twenty".