55946729 has 2 divisors, whose sum is σ = 55946730. Its totient is φ = 55946728.

The previous prime is 55946719. The next prime is 55946743. The reversal of 55946729 is 92764955.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33640000 + 22306729 = 5800^2 + 4723^2 .

It is a cyclic number.

It is not a de Polignac number, because 55946729 - 2²⁰ = 54898153 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55946719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27973364 + 27973365.

It is an arithmetic number, because the mean of its divisors is an integer number (27973365).

Almost surely, 2^55946729 is an apocalyptic number.

It is an amenable number.

55946729 is a deficient number, since it is larger than the sum of its proper divisors (1).

55946729 is an equidigital number, since it uses as much as digits as its factorization.

55946729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 680400, while the sum is 47.

The square root of 55946729 is about 7479.7546082743. The cubic root of 55946729 is about 382.4648840703.

The spelling of 55946729 in words is "fifty-five million, nine hundred forty-six thousand, seven hundred twenty-nine".