53640626 has 16 divisors (see below), whose sum is σ = 86788800. Its totient is φ = 24717648.

The previous prime is 53640599. The next prime is 53640637. The reversal of 53640626 is 62604635.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 53640592 and 53640601.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20585 + ... + 23043.

It is an arithmetic number, because the mean of its divisors is an integer number (5424300).

Almost surely, 2^53640626 is an apocalyptic number.

53640626 is a deficient number, since it is larger than the sum of its proper divisors (33148174).

53640626 is a wasteful number, since it uses less digits than its factorization.

53640626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3313.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 53640626 is about 7323.9761059141. The cubic root of 53640626 is about 377.1359612053.

The spelling of 53640626 in words is "fifty-three million, six hundred forty thousand, six hundred twenty-six".