55200319 has 2 divisors, whose sum is σ = 55200320. Its totient is φ = 55200318.

The previous prime is 55200307. The next prime is 55200329. The reversal of 55200319 is 91300255.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55200319 - 2⁵ = 55200287 is a prime.

It is a super-2 number, since 2×55200319² = 6094150435403522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55200293 and 55200302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55200329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27600159 + 27600160.

It is an arithmetic number, because the mean of its divisors is an integer number (27600160).

Almost surely, 2^55200319 is an apocalyptic number.

55200319 is a deficient number, since it is larger than the sum of its proper divisors (1).

55200319 is an equidigital number, since it uses as much as digits as its factorization.

55200319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 55200319 is about 7429.6917163500. The cubic root of 55200319 is about 380.7563858517.

The spelling of 55200319 in words is "fifty-five million, two hundred thousand, three hundred nineteen".