51520204450101 has 16 divisors (see below), whose sum is σ = 70286480478720. Its totient is φ = 33557508630000.

The previous prime is 51520204450067. The next prime is 51520204450133. The reversal of 51520204450101 is 10105440202515.

It is not a de Polignac number, because 51520204450101 - 2¹⁵ = 51520204417333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51520204450171) 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, 892838025 + ... + 892895726.

It is an arithmetic number, because the mean of its divisors is an integer number (4392905029920).

Almost surely, 2^{51520204450101} is an apocalyptic number.

It is an amenable number.

51520204450101 is a deficient number, since it is larger than the sum of its proper divisors (18766276028619).

51520204450101 is a wasteful number, since it uses less digits than its factorization.

51520204450101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785733976.

The product of its (nonzero) digits is 8000, while the sum is 30.

Adding to 51520204450101 its reverse (10105440202515), we get a palindrome (61625644652616).

The spelling of 51520204450101 in words is "fifty-one trillion, five hundred twenty billion, two hundred four million, four hundred fifty thousand, one hundred one".