53550636 has 24 divisors (see below), whose sum is σ = 125072304. Its totient is φ = 17832960.

The previous prime is 53550631. The next prime is 53550641. The reversal of 53550636 is 63605535.

It is an interprime number because it is at equal distance from previous prime (53550631) and next prime (53550641).

It is a junction number, because it is equal to n+sod(n) for n = 53550597 and 53550606.

It is not an unprimeable number, because it can be changed into a prime (53550631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19356 + ... + 21948.

It is an arithmetic number, because the mean of its divisors is an integer number (5211346).

Almost surely, 2^53550636 is an apocalyptic number.

It is an amenable number.

53550636 is an abundant number, since it is smaller than the sum of its proper divisors (71521668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53550636 is a wasteful number, since it uses less digits than its factorization.

53550636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4321 (or 4319 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 33.

The square root of 53550636 is about 7317.8300062245. The cubic root of 53550636 is about 376.9249429013.

The spelling of 53550636 in words is "fifty-three million, five hundred fifty thousand, six hundred thirty-six".