51542001201 has 16 divisors (see below), whose sum is σ = 69508108800. Its totient is φ = 33968761728.

The previous prime is 51542001163. The next prime is 51542001227. The reversal of 51542001201 is 10210024515.

It is not a de Polignac number, because 51542001201 - 2⁷ = 51542001073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51542001241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1671360 + ... + 1701918.

It is an arithmetic number, because the mean of its divisors is an integer number (4344256800).

Almost surely, 2^51542001201 is an apocalyptic number.

It is an amenable number.

51542001201 is a deficient number, since it is larger than the sum of its proper divisors (17966107599).

51542001201 is a wasteful number, since it uses less digits than its factorization.

51542001201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36968.

The product of its (nonzero) digits is 400, while the sum is 21.

Adding to 51542001201 its reverse (10210024515), we get a palindrome (61752025716).

The spelling of 51542001201 in words is "fifty-one billion, five hundred forty-two million, one thousand, two hundred one".