51854401 has 9 divisors (see below), whose sum is σ = 54872001. Its totient is φ = 48995604.

The previous prime is 51854389. The next prime is 51854417. The reversal of 51854401 is 10445815.

The square root of 51854401 is 7201.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 51854401 - 2⁷ = 51854273 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51854401.

It is not an unprimeable number, because it can be changed into a prime (51854441) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 136630 + ... + 137008.

It is an arithmetic number, because the mean of its divisors is an integer number (6096889).

Almost surely, 2^51854401 is an apocalyptic number.

51854401 is the 7201-st square number.

51854401 is the 3601-st centered octagonal number.

It is an amenable number.

51854401 is a deficient number, since it is larger than the sum of its proper divisors (3017600).

51854401 is an frugal number, since it uses more digits than its factorization.

51854401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796 (or 398 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

The cubic root of 51854401 is about 372.9024247209.

The spelling of 51854401 in words is "fifty-one million, eight hundred fifty-four thousand, four hundred one".