53623121 has 8 divisors (see below), whose sum is σ = 55969704. Its totient is φ = 51326080.

The previous prime is 53623093. The next prime is 53623159. The reversal of 53623121 is 12132635.

It can be written as a sum of positive squares in 4 ways, for example, as 8880400 + 44742721 = 2980^2 + 6689^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53623121 - 2⁶ = 53623057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53623421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10166 + ... + 14511.

It is an arithmetic number, because the mean of its divisors is an integer number (6996213).

Almost surely, 2^53623121 is an apocalyptic number.

It is an amenable number.

53623121 is a deficient number, since it is larger than the sum of its proper divisors (2346583).

53623121 is a wasteful number, since it uses less digits than its factorization.

53623121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24771.

The product of its digits is 1080, while the sum is 23.

The square root of 53623121 is about 7322.7809608099. The cubic root of 53623121 is about 377.0949320839.

Adding to 53623121 its reverse (12132635), we get a palindrome (65755756).

The spelling of 53623121 in words is "fifty-three million, six hundred twenty-three thousand, one hundred twenty-one".