55120612023 has 10 divisors (see below), whose sum is σ = 82340667464. Its totient is φ = 36747074628.

The previous prime is 55120611899. The next prime is 55120612033. The reversal of 55120612023 is 32021602155.

It is a happy number.

55120612023 is a `hidden beast` number, since 5 + 5 + 1 + 20 + 612 + 0 + 23 = 666.

It is not a de Polignac number, because 55120612023 - 2¹³ = 55120603831 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55120612033) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 340250611 + ... + 340250772.

Almost surely, 2^55120612023 is an apocalyptic number.

55120612023 is a deficient number, since it is larger than the sum of its proper divisors (27220055441).

55120612023 is an equidigital number, since it uses as much as digits as its factorization.

55120612023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680501395 (or 680501386 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The spelling of 55120612023 in words is "fifty-five billion, one hundred twenty million, six hundred twelve thousand, twenty-three".