55555250101 has 4 divisors (see below), whose sum is σ = 59828730892. Its totient is φ = 51281769312.

The previous prime is 55555250021. The next prime is 55555250167. The reversal of 55555250101 is 10105255555.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2680547076 + 52874703025 = 51774^2 + 229945^2 .

It is a cyclic number.

It is not a de Polignac number, because 55555250101 - 2¹³ = 55555241909 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 (55555259101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2136740376 + ... + 2136740401.

It is an arithmetic number, because the mean of its divisors is an integer number (14957182723).

Almost surely, 2^55555250101 is an apocalyptic number.

It is an amenable number.

55555250101 is a deficient number, since it is larger than the sum of its proper divisors (4273480791).

55555250101 is a wasteful number, since it uses less digits than its factorization.

55555250101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4273480790.

The product of its (nonzero) digits is 31250, while the sum is 34.

The spelling of 55555250101 in words is "fifty-five billion, five hundred fifty-five million, two hundred fifty thousand, one hundred one".