55124423 has 2 divisors, whose sum is σ = 55124424. Its totient is φ = 55124422.

The previous prime is 55124411. The next prime is 55124437. The reversal of 55124423 is 32442155.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55124423 - 2⁶ = 55124359 is a prime.

It is a super-2 number, since 2×55124423² = 6077404022165858, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55124392 and 55124401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55124473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27562211 + 27562212.

It is an arithmetic number, because the mean of its divisors is an integer number (27562212).

Almost surely, 2^55124423 is an apocalyptic number.

55124423 is a deficient number, since it is larger than the sum of its proper divisors (1).

55124423 is an equidigital number, since it uses as much as digits as its factorization.

55124423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4800, while the sum is 26.

The square root of 55124423 is about 7424.5823451559. The cubic root of 55124423 is about 380.5818026766.

Adding to 55124423 its reverse (32442155), we get a palindrome (87566578).

The spelling of 55124423 in words is "fifty-five million, one hundred twenty-four thousand, four hundred twenty-three".