51750401 has 2 divisors, whose sum is σ = 51750402. Its totient is φ = 51750400.

The previous prime is 51750379. The next prime is 51750407. The reversal of 51750401 is 10405715.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33466225 + 18284176 = 5785^2 + 4276^2 .

It is a cyclic number.

It is not a de Polignac number, because 51750401 - 2²² = 47556097 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51750407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25875200 + 25875201.

It is an arithmetic number, because the mean of its divisors is an integer number (25875201).

Almost surely, 2^51750401 is an apocalyptic number.

It is an amenable number.

51750401 is a deficient number, since it is larger than the sum of its proper divisors (1).

51750401 is an equidigital number, since it uses as much as digits as its factorization.

51750401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 51750401 is about 7193.7751563418. The cubic root of 51750401 is about 372.6529582179.

The spelling of 51750401 in words is "fifty-one million, seven hundred fifty thousand, four hundred one".