53523906 has 16 divisors (see below), whose sum is σ = 109537824. Its totient is φ = 17426304.

The previous prime is 53523889. The next prime is 53523907. The reversal of 53523906 is 60932535.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53523907) 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, 103471 + ... + 103986.

It is an arithmetic number, because the mean of its divisors is an integer number (6846114).

Almost surely, 2^53523906 is an apocalyptic number.

53523906 is an abundant number, since it is smaller than the sum of its proper divisors (56013918).

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

53523906 is a wasteful number, since it uses less digits than its factorization.

53523906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207505.

The product of its (nonzero) digits is 24300, while the sum is 33.

The square root of 53523906 is about 7316.0034171671. The cubic root of 53523906 is about 376.8622179659.

The spelling of 53523906 in words is "fifty-three million, five hundred twenty-three thousand, nine hundred six".