51022401 has 16 divisors (see below), whose sum is σ = 70443264. Its totient is φ = 32828544.

The previous prime is 51022399. The next prime is 51022417. The reversal of 51022401 is 10422015.

It is not a de Polignac number, because 51022401 - 2¹ = 51022399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51022421) 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, 7815 + ... + 12771.

It is an arithmetic number, because the mean of its divisors is an integer number (4402704).

Almost surely, 2^51022401 is an apocalyptic number.

It is an amenable number.

51022401 is a deficient number, since it is larger than the sum of its proper divisors (19420863).

51022401 is a wasteful number, since it uses less digits than its factorization.

51022401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5080.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 51022401 is about 7142.9966400664. The cubic root of 51022401 is about 370.8972647537.

Adding to 51022401 its reverse (10422015), we get a palindrome (61444416).

It can be divided in two parts, 5102 and 2401, that added together give a triangular number (7503 = T₁₂₂).

The spelling of 51022401 in words is "fifty-one million, twenty-two thousand, four hundred one".