51402801 has 8 divisors (see below), whose sum is σ = 68732640. Its totient is φ = 34170752.

The previous prime is 51402797. The next prime is 51402803. The reversal of 51402801 is 10820415.

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

It is a cyclic number.

It is not a de Polignac number, because 51402801 - 2² = 51402797 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51402803) 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, 23211 + ... + 25328.

It is an arithmetic number, because the mean of its divisors is an integer number (8591580).

Almost surely, 2^51402801 is an apocalyptic number.

It is an amenable number.

51402801 is a deficient number, since it is larger than the sum of its proper divisors (17329839).

51402801 is a wasteful number, since it uses less digits than its factorization.

51402801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48895.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 51402801 is about 7169.5746735772. The cubic root of 51402801 is about 371.8167310346.

The spelling of 51402801 in words is "fifty-one million, four hundred two thousand, eight hundred one".