51552401053 has 4 divisors (see below), whose sum is σ = 51581810908. Its totient is φ = 51522991200.

The previous prime is 51552401051. The next prime is 51552401071. The reversal of 51552401053 is 35010425515.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9631067044 + 41921334009 = 98138^2 + 204747^2 .

It is a cyclic number.

It is not a de Polignac number, because 51552401053 - 2¹ = 51552401051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51552401051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14702298 + ... + 14705803.

It is an arithmetic number, because the mean of its divisors is an integer number (12895452727).

Almost surely, 2^51552401053 is an apocalyptic number.

It is an amenable number.

51552401053 is a deficient number, since it is larger than the sum of its proper divisors (29409855).

51552401053 is a wasteful number, since it uses less digits than its factorization.

51552401053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29409854.

The product of its (nonzero) digits is 15000, while the sum is 31.

Adding to 51552401053 its reverse (35010425515), we get a palindrome (86562826568).

The spelling of 51552401053 in words is "fifty-one billion, five hundred fifty-two million, four hundred one thousand, fifty-three".