55123123546 has 8 divisors (see below), whose sum is σ = 82687173120. Its totient is φ = 27560732508.

The previous prime is 55123123493. The next prime is 55123123547. The reversal of 55123123546 is 64532132155.

55123123546 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×55123123546² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55123123547) 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, 327916 + ... + 466663.

It is an arithmetic number, because the mean of its divisors is an integer number (10335896640).

Almost surely, 2^55123123546 is an apocalyptic number.

55123123546 is a deficient number, since it is larger than the sum of its proper divisors (27564049574).

55123123546 is a wasteful number, since it uses less digits than its factorization.

55123123546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829268.

The product of its digits is 108000, while the sum is 37.

The spelling of 55123123546 in words is "fifty-five billion, one hundred twenty-three million, one hundred twenty-three thousand, five hundred forty-six".