51401803 has 8 divisors (see below), whose sum is σ = 54547200. Its totient is φ = 48332328.

The previous prime is 51401773. The next prime is 51401807. The reversal of 51401803 is 30810415.

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

It is not a de Polignac number, because 51401803 - 2⁵ = 51401771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51401807) 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, 17583 + ... + 20296.

It is an arithmetic number, because the mean of its divisors is an integer number (6818400).

Almost surely, 2^51401803 is an apocalyptic number.

51401803 is a deficient number, since it is larger than the sum of its proper divisors (3145397).

51401803 is a wasteful number, since it uses less digits than its factorization.

51401803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37961.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 51401803 is about 7169.5050735738. The cubic root of 51401803 is about 371.8143247099.

The spelling of 51401803 in words is "fifty-one million, four hundred one thousand, eight hundred three".