51390300030261 has 16 divisors (see below), whose sum is σ = 69631350326784. Its totient is φ = 33709150974464.

The previous prime is 51390300030241. The next prime is 51390300030331. The reversal of 51390300030261 is 16203000309315.

51390300030261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 51390300030261 - 2¹⁷ = 51390299899189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51390300030241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 553215621 + ... + 553308506.

It is an arithmetic number, because the mean of its divisors is an integer number (4351959395424).

Almost surely, 2^{51390300030261} is an apocalyptic number.

It is an amenable number.

51390300030261 is a deficient number, since it is larger than the sum of its proper divisors (18241050296523).

51390300030261 is a wasteful number, since it uses less digits than its factorization.

51390300030261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106524380.

The product of its (nonzero) digits is 14580, while the sum is 33.

Adding to 51390300030261 its reverse (16203000309315), we get a palindrome (67593300339576).

The spelling of 51390300030261 in words is "fifty-one trillion, three hundred ninety billion, three hundred million, thirty thousand, two hundred sixty-one".