53438502 has 16 divisors (see below), whose sum is σ = 115098480. Its totient is φ = 16442592.

The previous prime is 53438479. The next prime is 53438509. The reversal of 53438502 is 20583435.

53438502 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 53438502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53438509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342477 + ... + 342632.

It is an arithmetic number, because the mean of its divisors is an integer number (7193655).

Almost surely, 2^53438502 is an apocalyptic number.

53438502 is an abundant number, since it is smaller than the sum of its proper divisors (61659978).

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

53438502 is a wasteful number, since it uses less digits than its factorization.

53438502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685127.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 53438502 is about 7310.1642936394. The cubic root of 53438502 is about 376.6616678621.

The spelling of 53438502 in words is "fifty-three million, four hundred thirty-eight thousand, five hundred two".