55123131453430 has 16 divisors (see below), whose sum is σ = 99720237808800. Its totient is φ = 21938452316352.

The previous prime is 55123131453407. The next prime is 55123131453433. The reversal of 55123131453430 is 3435413132155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55123131453433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13850031039 + ... + 13850035018.

It is an arithmetic number, because the mean of its divisors is an integer number (6232514863050).

Almost surely, 2^{55123131453430} is an apocalyptic number.

55123131453430 is a deficient number, since it is larger than the sum of its proper divisors (44597106355370).

55123131453430 is a wasteful number, since it uses less digits than its factorization.

55123131453430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27700066263.

The product of its (nonzero) digits is 324000, while the sum is 40.

Adding to 55123131453430 its reverse (3435413132155), we get a palindrome (58558544585585).

The spelling of 55123131453430 in words is "fifty-five trillion, one hundred twenty-three billion, one hundred thirty-one million, four hundred fifty-three thousand, four hundred thirty".