56623105 has 16 divisors (see below), whose sum is σ = 84714624. Its totient is φ = 35297280.

The previous prime is 56623093. The next prime is 56623153. The reversal of 56623105 is 50132665.

It is a Cunningham number, because it is equal to 384³+1.

It is not a de Polignac number, because 56623105 - 2²⁵ = 23068673 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73152 + ... + 73921.

It is an arithmetic number, because the mean of its divisors is an integer number (5294664).

It is a Proth number, since it is equal to 27 ⋅ 2²¹ + 1 and 27 < 2²¹.

Almost surely, 2^56623105 is an apocalyptic number.

56623105 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56623105 is a deficient number, since it is larger than the sum of its proper divisors (28091519).

56623105 is a wasteful number, since it uses less digits than its factorization.

56623105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147096.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 56623105 is about 7524.8325562766. The cubic root of 56623105 is about 384.0000022606. Note that the first 5 decimals are identical.

The spelling of 56623105 in words is "fifty-six million, six hundred twenty-three thousand, one hundred five".