55154522501 has 4 divisors (see below), whose sum is σ = 59397178092. Its totient is φ = 50911866912.

The previous prime is 55154522471. The next prime is 55154522519. The reversal of 55154522501 is 10522545155.

It is a Cunningham number, because it is equal to 234850²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10522545155 = 5 ⋅2104509031.

It can be written as a sum of positive squares in 2 ways, for example, as 8158786276 + 46995736225 = 90326^2 + 216785^2 .

It is a cyclic number.

It is not a de Polignac number, because 55154522501 - 2³⁴ = 37974653317 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 (55154582501) 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, 2121327776 + ... + 2121327801.

It is an arithmetic number, because the mean of its divisors is an integer number (14849294523).

Almost surely, 2^55154522501 is an apocalyptic number.

It is an amenable number.

55154522501 is a deficient number, since it is larger than the sum of its proper divisors (4242655591).

55154522501 is a wasteful number, since it uses less digits than its factorization.

55154522501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4242655590.

The product of its (nonzero) digits is 50000, while the sum is 35.

The spelling of 55154522501 in words is "fifty-five billion, one hundred fifty-four million, five hundred twenty-two thousand, five hundred one".