51020454401 has 16 divisors (see below), whose sum is σ = 59906359296. Its totient is φ = 42545012496.

The previous prime is 51020454391. The next prime is 51020454409. The reversal of 51020454401 is 10445402015.

It is not a de Polignac number, because 51020454401 - 2³⁴ = 33840585217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51020454409) 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, 409361 + ... + 519246.

It is an arithmetic number, because the mean of its divisors is an integer number (3744147456).

Almost surely, 2^51020454401 is an apocalyptic number.

It is an amenable number.

51020454401 is a deficient number, since it is larger than the sum of its proper divisors (8885904895).

51020454401 is a wasteful number, since it uses less digits than its factorization.

51020454401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928828.

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 51020454401 its reverse (10445402015), we get a palindrome (61465856416).

The spelling of 51020454401 in words is "fifty-one billion, twenty million, four hundred fifty-four thousand, four hundred one".