55538626 has 32 divisors (see below), whose sum is σ = 103638528. Its totient is φ = 21930240.

The previous prime is 55538621. The next prime is 55538627. The reversal of 55538626 is 62683555.

It is not an unprimeable number, because it can be changed into a prime (55538621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 850 + ... + 10573.

It is an arithmetic number, because the mean of its divisors is an integer number (3238704).

Almost surely, 2^55538626 is an apocalyptic number.

55538626 is a deficient number, since it is larger than the sum of its proper divisors (48099902).

55538626 is a wasteful number, since it uses less digits than its factorization.

55538626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11466.

The product of its digits is 216000, while the sum is 40.

The square root of 55538626 is about 7452.4241693559. The cubic root of 55538626 is about 381.5326512400.

Subtracting 55538626 from its reverse (62683555), we obtain a square (7144929 = 2673²).

The spelling of 55538626 in words is "fifty-five million, five hundred thirty-eight thousand, six hundred twenty-six".