55719371 has 2 divisors, whose sum is σ = 55719372. Its totient is φ = 55719370.

The previous prime is 55719361. The next prime is 55719379. The reversal of 55719371 is 17391755.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55719371 - 2¹⁰ = 55718347 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55719379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27859685 + 27859686.

It is an arithmetic number, because the mean of its divisors is an integer number (27859686).

Almost surely, 2^55719371 is an apocalyptic number.

55719371 is a deficient number, since it is larger than the sum of its proper divisors (1).

55719371 is an equidigital number, since it uses as much as digits as its factorization.

55719371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33075, while the sum is 38.

The square root of 55719371 is about 7464.5409101967. The cubic root of 55719371 is about 381.9460899042.

The spelling of 55719371 in words is "fifty-five million, seven hundred nineteen thousand, three hundred seventy-one".