155211425034241 has 4 divisors (see below), whose sum is σ = 160563543138900. Its totient is φ = 149859306929584.

The previous prime is 155211425034191. The next prime is 155211425034247. The reversal of 155211425034241 is 142430524112551.

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 103408642352016 + 51802782682225 = 10169004^2 + 7197415^2 .

It is a cyclic number.

It is not a de Polignac number, because 155211425034241 - 2⁹ = 155211425033729 is a prime.

It is a super-2 number, since 2×155211425034241² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155211425034194 and 155211425034203.

It is not an unprimeable number, because it can be changed into a prime (155211425034247) 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, 2676059052286 + ... + 2676059052343.

It is an arithmetic number, because the mean of its divisors is an integer number (40140885784725).

Almost surely, 2^{155211425034241} is an apocalyptic number.

It is an amenable number.

155211425034241 is a deficient number, since it is larger than the sum of its proper divisors (5352118104659).

155211425034241 is an equidigital number, since it uses as much as digits as its factorization.

155211425034241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5352118104658.

The product of its (nonzero) digits is 192000, while the sum is 40.

Adding to 155211425034241 its reverse (142430524112551), we get a palindrome (297641949146792).

The spelling of 155211425034241 in words is "one hundred fifty-five trillion, two hundred eleven billion, four hundred twenty-five million, thirty-four thousand, two hundred forty-one".