2155541254 has 8 divisors (see below), whose sum is σ = 3234867408. Its totient is φ = 1077252120.

The previous prime is 2155541251. The next prime is 2155541273. The reversal of 2155541254 is 4521455512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155541251) 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, 254037 + ... + 262384.

It is an arithmetic number, because the mean of its divisors is an integer number (404358426).

Almost surely, 2^2155541254 is an apocalyptic number.

2155541254 is a deficient number, since it is larger than the sum of its proper divisors (1079326154).

2155541254 is a wasteful number, since it uses less digits than its factorization.

2155541254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518510.

The product of its digits is 40000, while the sum is 34.

The square root of 2155541254 is about 46427.8069049142. The cubic root of 2155541254 is about 1291.7707497249.

Adding to 2155541254 its reverse (4521455512), we get a palindrome (6676996766).

The spelling of 2155541254 in words is "two billion, one hundred fifty-five million, five hundred forty-one thousand, two hundred fifty-four".