55072629 has 10 divisors (see below), whose sum is σ = 82269110. Its totient is φ = 36715032.

The previous prime is 55072607. The next prime is 55072643. The reversal of 55072629 is 92627055.

It can be written as a sum of positive squares in only one way, i.e., 54730404 + 342225 = 7398^2 + 585^2 .

It is not a de Polignac number, because 55072629 - 2⁹ = 55072117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55072593 and 55072602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55072669) 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, 339874 + ... + 340035.

It is an arithmetic number, because the mean of its divisors is an integer number (8226911).

Almost surely, 2^55072629 is an apocalyptic number.

It is an amenable number.

55072629 is a deficient number, since it is larger than the sum of its proper divisors (27196481).

55072629 is an equidigital number, since it uses as much as digits as its factorization.

55072629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679921 (or 679912 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 55072629 is about 7421.0935178045. The cubic root of 55072629 is about 380.4625691942.

The spelling of 55072629 in words is "fifty-five million, seventy-two thousand, six hundred twenty-nine".