55005050501 has 4 divisors (see below), whose sum is σ = 55826021472. Its totient is φ = 54184079532.

The previous prime is 55005050497. The next prime is 55005050533. The reversal of 55005050501 is 10505050055.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10505050055 = 5 ⋅2101010011.

It is a cyclic number.

It is not a de Polignac number, because 55005050501 - 2² = 55005050497 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55005050701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 410485385 + ... + 410485518.

It is an arithmetic number, because the mean of its divisors is an integer number (13956505368).

Almost surely, 2^55005050501 is an apocalyptic number.

It is an amenable number.

55005050501 is a deficient number, since it is larger than the sum of its proper divisors (820970971).

55005050501 is an equidigital number, since it uses as much as digits as its factorization.

55005050501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820970970.

The product of its (nonzero) digits is 3125, while the sum is 26.

The spelling of 55005050501 in words is "fifty-five billion, five million, fifty thousand, five hundred one".