55745783 has 2 divisors, whose sum is σ = 55745784. Its totient is φ = 55745782.

The previous prime is 55745779. The next prime is 55745819. The reversal of 55745783 is 38754755.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55745783 - 2² = 55745779 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55742783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27872891 + 27872892.

It is an arithmetic number, because the mean of its divisors is an integer number (27872892).

Almost surely, 2^55745783 is an apocalyptic number.

55745783 is a deficient number, since it is larger than the sum of its proper divisors (1).

55745783 is an equidigital number, since it uses as much as digits as its factorization.

55745783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 588000, while the sum is 44.

The square root of 55745783 is about 7466.3098649869. The cubic root of 55745783 is about 382.0064301797.

The spelling of 55745783 in words is "fifty-five million, seven hundred forty-five thousand, seven hundred eighty-three".