55234104503621 has 32 divisors (see below), whose sum is σ = 58238620323840. Its totient is φ = 52321279885056.

The previous prime is 55234104503587. The next prime is 55234104503623. The reversal of 55234104503621 is 12630540143255.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55234104503621 is a prime.

It is a super-2 number, since 2×55234104503621² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55234104503623) 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, 2476521356 + ... + 2476543658.

It is an arithmetic number, because the mean of its divisors is an integer number (1819956885120).

Almost surely, 2^{55234104503621} is an apocalyptic number.

It is an amenable number.

55234104503621 is a deficient number, since it is larger than the sum of its proper divisors (3004515820219).

55234104503621 is a wasteful number, since it uses less digits than its factorization.

55234104503621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29813.

The product of its (nonzero) digits is 432000, while the sum is 41.

Adding to 55234104503621 its reverse (12630540143255), we get a palindrome (67864644646876).

The spelling of 55234104503621 in words is "fifty-five trillion, two hundred thirty-four billion, one hundred four million, five hundred three thousand, six hundred twenty-one".