4155523454 has 4 divisors (see below), whose sum is σ = 6233285184. Its totient is φ = 2077761726.

The previous prime is 4155523451. The next prime is 4155523457. The reversal of 4155523454 is 4543255514.

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

It is an interprime number because it is at equal distance from previous prime (4155523451) and next prime (4155523457).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4155523451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1038880862 + ... + 1038880865.

It is an arithmetic number, because the mean of its divisors is an integer number (1558321296).

Almost surely, 2^4155523454 is an apocalyptic number.

4155523454 is a deficient number, since it is larger than the sum of its proper divisors (2077761730).

4155523454 is a wasteful number, since it uses less digits than its factorization.

4155523454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2077761729.

The product of its digits is 240000, while the sum is 38.

The square root of 4155523454 is about 64463.3496957767. The cubic root of 4155523454 is about 1607.7132065171.

Adding to 4155523454 its reverse (4543255514), we get a palindrome (8698778968).

The spelling of 4155523454 in words is "four billion, one hundred fifty-five million, five hundred twenty-three thousand, four hundred fifty-four".