55400179750 has 16 divisors (see below), whose sum is σ = 103709136960. Its totient is φ = 22160071800.

The previous prime is 55400179733. The next prime is 55400179753. The reversal of 55400179750 is 5797100455.

It is a junction number, because it is equal to n+sod(n) for n = 55400179697 and 55400179706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55400179753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110800110 + ... + 110800609.

It is an arithmetic number, because the mean of its divisors is an integer number (6481821060).

Almost surely, 2^55400179750 is an apocalyptic number.

55400179750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55400179750 is a deficient number, since it is larger than the sum of its proper divisors (48308957210).

55400179750 is a wasteful number, since it uses less digits than its factorization.

55400179750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221600736 (or 221600726 counting only the distinct ones).

The product of its (nonzero) digits is 220500, while the sum is 43.

The spelling of 55400179750 in words is "fifty-five billion, four hundred million, one hundred seventy-nine thousand, seven hundred fifty".