51004401 has 8 divisors (see below), whose sum is σ = 77721024. Its totient is φ = 29145360.

The previous prime is 51004381. The next prime is 51004423. The reversal of 51004401 is 10440015.

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

It is not a de Polignac number, because 51004401 - 2¹⁰ = 51003377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51004001) 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, 1214370 + ... + 1214411.

It is an arithmetic number, because the mean of its divisors is an integer number (9715128).

Almost surely, 2^51004401 is an apocalyptic number.

It is an amenable number.

51004401 is a deficient number, since it is larger than the sum of its proper divisors (26716623).

51004401 is a wasteful number, since it uses less digits than its factorization.

51004401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428791.

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

The square root of 51004401 is about 7141.7365535281. The cubic root of 51004401 is about 370.8536438090.

Adding to 51004401 its reverse (10440015), we get a palindrome (61444416).

The spelling of 51004401 in words is "fifty-one million, four thousand, four hundred one".