51742601 has 2 divisors, whose sum is σ = 51742602. Its totient is φ = 51742600.

The previous prime is 51742597. The next prime is 51742609. The reversal of 51742601 is 10624715.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46566976 + 5175625 = 6824^2 + 2275^2 .

It is a cyclic number.

It is not a de Polignac number, because 51742601 - 2² = 51742597 is a prime.

It is not a weakly prime, because it can be changed into another prime (51742609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25871300 + 25871301.

It is an arithmetic number, because the mean of its divisors is an integer number (25871301).

Almost surely, 2^51742601 is an apocalyptic number.

It is an amenable number.

51742601 is a deficient number, since it is larger than the sum of its proper divisors (1).

51742601 is an equidigital number, since it uses as much as digits as its factorization.

51742601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 51742601 is about 7193.2330005360. The cubic root of 51742601 is about 372.6342347615.

The spelling of 51742601 in words is "fifty-one million, seven hundred forty-two thousand, six hundred one".