544252123523 has 4 divisors (see below), whose sum is σ = 554521031568. Its totient is φ = 533983215480.

The previous prime is 544252123507. The next prime is 544252123559. The reversal of 544252123523 is 325321252445.

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

It is a cyclic number.

It is not a de Polignac number, because 544252123523 - 2⁴ = 544252123507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (544252128523) 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, 5134453943 + ... + 5134454048.

It is an arithmetic number, because the mean of its divisors is an integer number (138630257892).

Almost surely, 2^544252123523 is an apocalyptic number.

544252123523 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

544252123523 is a deficient number, since it is larger than the sum of its proper divisors (10268908045).

544252123523 is a wasteful number, since it uses less digits than its factorization.

544252123523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10268908044.

The product of its digits is 288000, while the sum is 38.

Adding to 544252123523 its reverse (325321252445), we get a palindrome (869573375968).

The spelling of 544252123523 in words is "five hundred forty-four billion, two hundred fifty-two million, one hundred twenty-three thousand, five hundred twenty-three".