53700138 has 16 divisors (see below), whose sum is σ = 119333760. Its totient is φ = 17900028.

The previous prime is 53700121. The next prime is 53700139. The reversal of 53700138 is 83100735.

53700138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53700139) 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, 497170 + ... + 497277.

It is an arithmetic number, because the mean of its divisors is an integer number (7458360).

Almost surely, 2^53700138 is an apocalyptic number.

53700138 is an abundant number, since it is smaller than the sum of its proper divisors (65633622).

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

53700138 is a wasteful number, since it uses less digits than its factorization.

53700138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994458 (or 994452 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 53700138 is about 7328.0378001208. The cubic root of 53700138 is about 377.2753817766.

The spelling of 53700138 in words is "fifty-three million, seven hundred thousand, one hundred thirty-eight".