53151644 has 24 divisors (see below), whose sum is σ = 114481248. Its totient is φ = 21026880.

The previous prime is 53151641. The next prime is 53151661. The reversal of 53151644 is 44615135.

It is a happy number.

53151644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53151641) 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, 72647 + ... + 73374.

It is an arithmetic number, because the mean of its divisors is an integer number (4770052).

Almost surely, 2^53151644 is an apocalyptic number.

It is an amenable number.

53151644 is an abundant number, since it is smaller than the sum of its proper divisors (61329604).

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

53151644 is a wasteful number, since it uses less digits than its factorization.

53151644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146045 (or 146043 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 53151644 is about 7290.5174027637. The cubic root of 53151644 is about 375.9864847262.

Adding to 53151644 its reverse (44615135), we get a palindrome (97766779).

The spelling of 53151644 in words is "fifty-three million, one hundred fifty-one thousand, six hundred forty-four".