53121354 has 64 divisors (see below), whose sum is σ = 126258048. Its totient is φ = 14688000.

The previous prime is 53121353. The next prime is 53121361. The reversal of 53121354 is 45312135.

It is not an unprimeable number, because it can be changed into a prime (53121353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86352 + ... + 86964.

It is an arithmetic number, because the mean of its divisors is an integer number (1972782).

Almost surely, 2^53121354 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53121354, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63129024).

53121354 is an abundant number, since it is smaller than the sum of its proper divisors (73136694).

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

53121354 is a wasteful number, since it uses less digits than its factorization.

53121354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743.

The product of its digits is 1800, while the sum is 24.

The square root of 53121354 is about 7288.4397507285. The cubic root of 53121354 is about 375.9150489008.

Adding to 53121354 its reverse (45312135), we get a palindrome (98433489).

It can be divided in two parts, 5312 and 1354, that added together give a palindrome (6666).

The spelling of 53121354 in words is "fifty-three million, one hundred twenty-one thousand, three hundred fifty-four".