52131220054 has 4 divisors (see below), whose sum is σ = 78196830084. Its totient is φ = 26065610026.

The previous prime is 52131220051. The next prime is 52131220067. The reversal of 52131220054 is 45002213125.

It is a semiprime because it is the product of two primes.

It is a super-4 number, since 4×52131220054⁴ (a number of 44 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52131220051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13032805012 + ... + 13032805015.

It is an arithmetic number, because the mean of its divisors is an integer number (19549207521).

Almost surely, 2^52131220054 is an apocalyptic number.

52131220054 is a deficient number, since it is larger than the sum of its proper divisors (26065610030).

52131220054 is a wasteful number, since it uses less digits than its factorization.

52131220054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26065610029.

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 52131220054 its reverse (45002213125), we get a palindrome (97133433179).

The spelling of 52131220054 in words is "fifty-two billion, one hundred thirty-one million, two hundred twenty thousand, fifty-four".