55194731 has 2 divisors, whose sum is σ = 55194732. Its totient is φ = 55194730.

The previous prime is 55194721. The next prime is 55194793. The reversal of 55194731 is 13749155.

55194731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55194731 - 2¹⁰ = 55193707 is a prime.

It is a super-2 number, since 2×55194731² = 6092916660324722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55194691 and 55194700.

It is not a weakly prime, because it can be changed into another prime (55194701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27597365 + 27597366.

It is an arithmetic number, because the mean of its divisors is an integer number (27597366).

Almost surely, 2^55194731 is an apocalyptic number.

55194731 is a deficient number, since it is larger than the sum of its proper divisors (1).

55194731 is an equidigital number, since it uses as much as digits as its factorization.

55194731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18900, while the sum is 35.

The square root of 55194731 is about 7429.3156481603. The cubic root of 55194731 is about 380.7435372636.

The spelling of 55194731 in words is "fifty-five million, one hundred ninety-four thousand, seven hundred thirty-one".