51021325401 has 8 divisors (see below), whose sum is σ = 69311989440. Its totient is φ = 33372439152.

The previous prime is 51021325367. The next prime is 51021325403. The reversal of 51021325401 is 10452312015.

It is a happy number.

51021325401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51021325401 - 2⁷ = 51021325273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51021325403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160444261 + ... + 160444578.

It is an arithmetic number, because the mean of its divisors is an integer number (8663998680).

Almost surely, 2^51021325401 is an apocalyptic number.

It is an amenable number.

51021325401 is a deficient number, since it is larger than the sum of its proper divisors (18290664039).

51021325401 is a wasteful number, since it uses less digits than its factorization.

51021325401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320888895.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 51021325401 its reverse (10452312015), we get a palindrome (61473637416).

The spelling of 51021325401 in words is "fifty-one billion, twenty-one million, three hundred twenty-five thousand, four hundred one".