51836401 has 2 divisors, whose sum is σ = 51836402. Its totient is φ = 51836400.

The previous prime is 51836387. The next prime is 51836429. The reversal of 51836401 is 10463815.

It is an a-pointer prime, because the next prime (51836429) can be obtained adding 51836401 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49014001 + 2822400 = 7001^2 + 1680^2 .

It is a cyclic number.

It is not a de Polignac number, because 51836401 - 2¹¹ = 51834353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51836401.

It is not a weakly prime, because it can be changed into another prime (51836101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25918200 + 25918201.

It is an arithmetic number, because the mean of its divisors is an integer number (25918201).

Almost surely, 2^51836401 is an apocalyptic number.

It is an amenable number.

51836401 is a deficient number, since it is larger than the sum of its proper divisors (1).

51836401 is an equidigital number, since it uses as much as digits as its factorization.

51836401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 51836401 is about 7199.7500651064. The cubic root of 51836401 is about 372.8592717109.

The spelling of 51836401 in words is "fifty-one million, eight hundred thirty-six thousand, four hundred one".