55305500051 has 2 divisors, whose sum is σ = 55305500052. Its totient is φ = 55305500050.

The previous prime is 55305500027. The next prime is 55305500101. The reversal of 55305500051 is 15000550355.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55305500051 - 2⁶ = 55305499987 is a prime.

It is a super-2 number, since 2×55305500051² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 55305499987 and 55305500023.

It is not a weakly prime, because it can be changed into another prime (55305500251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27652750025 + 27652750026.

It is an arithmetic number, because the mean of its divisors is an integer number (27652750026).

Almost surely, 2^55305500051 is an apocalyptic number.

55305500051 is a deficient number, since it is larger than the sum of its proper divisors (1).

55305500051 is an equidigital number, since it uses as much as digits as its factorization.

55305500051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9375, while the sum is 29.

The spelling of 55305500051 in words is "fifty-five billion, three hundred five million, five hundred thousand, fifty-one".