55016749 has 2 divisors, whose sum is σ = 55016750. Its totient is φ = 55016748.

The previous prime is 55016677. The next prime is 55016771. The reversal of 55016749 is 94761055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50154724 + 4862025 = 7082^2 + 2205^2 .

It is a cyclic number.

It is not a de Polignac number, because 55016749 - 2⁹ = 55016237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55016789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27508374 + 27508375.

It is an arithmetic number, because the mean of its divisors is an integer number (27508375).

Almost surely, 2^55016749 is an apocalyptic number.

It is an amenable number.

55016749 is a deficient number, since it is larger than the sum of its proper divisors (1).

55016749 is an equidigital number, since it uses as much as digits as its factorization.

55016749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 55016749 is about 7417.3276184890. The cubic root of 55016749 is about 380.3338455829. Note that the first 3 decimals are identical.

The spelling of 55016749 in words is "fifty-five million, sixteen thousand, seven hundred forty-nine".