55719206 has 4 divisors (see below), whose sum is σ = 83578812. Its totient is φ = 27859602.

The previous prime is 55719137. The next prime is 55719227. The reversal of 55719206 is 60291755.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60291755 = 5 ⋅12058351.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13929800 + ... + 13929803.

It is an arithmetic number, because the mean of its divisors is an integer number (20894703).

Almost surely, 2^55719206 is an apocalyptic number.

55719206 is a deficient number, since it is larger than the sum of its proper divisors (27859606).

55719206 is a wasteful number, since it uses less digits than its factorization.

55719206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27859605.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 55719206 is about 7464.5298579348. The cubic root of 55719206 is about 381.9457128889.

The spelling of 55719206 in words is "fifty-five million, seven hundred nineteen thousand, two hundred six".