51840601 has 2 divisors, whose sum is σ = 51840602. Its totient is φ = 51840600.

The previous prime is 51840571. The next prime is 51840617. The reversal of 51840601 is 10604815.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29975625 + 21864976 = 5475^2 + 4676^2 .

It is a cyclic number.

It is not a de Polignac number, because 51840601 - 2⁷ = 51840473 is a prime.

It is not a weakly prime, because it can be changed into another prime (51840101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25920300 + 25920301.

It is an arithmetic number, because the mean of its divisors is an integer number (25920301).

Almost surely, 2^51840601 is an apocalyptic number.

It is an amenable number.

51840601 is a deficient number, since it is larger than the sum of its proper divisors (1).

51840601 is an equidigital number, since it uses as much as digits as its factorization.

51840601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 51840601 is about 7200.0417359901. The cubic root of 51840601 is about 372.8693416400.

It can be divided in two parts, 51840 and 601, that added together give a square (52441 = 229²).

The spelling of 51840601 in words is "fifty-one million, eight hundred forty thousand, six hundred one".