53648790 has 64 divisors (see below), whose sum is σ = 139732992. Its totient is φ = 13104000.

The previous prime is 53648783. The next prime is 53648797. The reversal of 53648790 is 9784635.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (53648783) and next prime (53648797).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53648797) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58435 + ... + 59345.

It is an arithmetic number, because the mean of its divisors is an integer number (2183328).

Almost surely, 2^53648790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53648790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69866496).

53648790 is an abundant number, since it is smaller than the sum of its proper divisors (86084202).

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

53648790 is a wasteful number, since it uses less digits than its factorization.

53648790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 53648790 is about 7324.5334322399. The cubic root of 53648790 is about 377.1550933571.

The spelling of 53648790 in words is "fifty-three million, six hundred forty-eight thousand, seven hundred ninety".