55204215432631 has 8 divisors (see below), whose sum is σ = 56246290778304. Its totient is φ = 54162158100960.

The previous prime is 55204215432629. The next prime is 55204215432643. The reversal of 55204215432631 is 13623451240255.

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 55204215432631 - 2¹ = 55204215432629 is a prime.

It is a super-2 number, since 2×55204215432631² (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 (55204215432031) 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, 1764961 + ... + 10654741.

It is an arithmetic number, because the mean of its divisors is an integer number (7030786347288).

Almost surely, 2^{55204215432631} is an apocalyptic number.

55204215432631 is a deficient number, since it is larger than the sum of its proper divisors (1042075345673).

55204215432631 is a wasteful number, since it uses less digits than its factorization.

55204215432631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9007001.

The product of its (nonzero) digits is 864000, while the sum is 43.

Adding to 55204215432631 its reverse (13623451240255), we get a palindrome (68827666672886).

The spelling of 55204215432631 in words is "fifty-five trillion, two hundred four billion, two hundred fifteen million, four hundred thirty-two thousand, six hundred thirty-one".