53121654 has 24 divisors (see below), whose sum is σ = 116556960. Its totient is φ = 17482608.

The previous prime is 53121637. The next prime is 53121659. The reversal of 53121654 is 45612135.

53121654 is a `hidden beast` number, since 5 + 3 + 1 + 2 + 1 + 654 = 666.

53121654 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53121659) 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 11 ways as a sum of consecutive naturals, for example, 17257 + ... + 20100.

It is an arithmetic number, because the mean of its divisors is an integer number (4856540).

Almost surely, 2^53121654 is an apocalyptic number.

53121654 is an abundant number, since it is smaller than the sum of its proper divisors (63435306).

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

53121654 is a wasteful number, since it uses less digits than its factorization.

53121654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37444 (or 37441 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 53121654 is about 7288.4603312359. The cubic root of 53121654 is about 375.9157565528.

Adding to 53121654 its reverse (45612135), we get a palindrome (98733789).

The spelling of 53121654 in words is "fifty-three million, one hundred twenty-one thousand, six hundred fifty-four".