53906550 has 24 divisors (see below), whose sum is σ = 133688616. Its totient is φ = 14375040.

The previous prime is 53906539. The next prime is 53906557. The reversal of 53906550 is 5560935.

It is a super-2 number, since 2×53906550² = 5811832265805000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53906557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 179539 + ... + 179838.

It is an arithmetic number, because the mean of its divisors is an integer number (5570359).

Almost surely, 2^53906550 is an apocalyptic number.

53906550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

53906550 is an abundant number, since it is smaller than the sum of its proper divisors (79782066).

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

53906550 is a wasteful number, since it uses less digits than its factorization.

53906550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359392 (or 359387 counting only the distinct ones).

The product of its (nonzero) digits is 20250, while the sum is 33.

The square root of 53906550 is about 7342.1080079225. The cubic root of 53906550 is about 377.7581527355.

The spelling of 53906550 in words is "fifty-three million, nine hundred six thousand, five hundred fifty".