55401677 has 2 divisors, whose sum is σ = 55401678. Its totient is φ = 55401676.

The previous prime is 55401667. The next prime is 55401721. The reversal of 55401677 is 77610455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54967396 + 434281 = 7414^2 + 659^2 .

It is a cyclic number.

It is not a de Polignac number, because 55401677 - 2¹² = 55397581 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55401667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27700838 + 27700839.

It is an arithmetic number, because the mean of its divisors is an integer number (27700839).

Almost surely, 2^55401677 is an apocalyptic number.

It is an amenable number.

55401677 is a deficient number, since it is larger than the sum of its proper divisors (1).

55401677 is an equidigital number, since it uses as much as digits as its factorization.

55401677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29400, while the sum is 35.

The square root of 55401677 is about 7443.2302799255. The cubic root of 55401677 is about 381.2187944718.

The spelling of 55401677 in words is "fifty-five million, four hundred one thousand, six hundred seventy-seven".