55202435051421 has 8 divisors (see below), whose sum is σ = 84117996268864. Its totient is φ = 31544248600800.

The previous prime is 55202435051411. The next prime is 55202435051459. The reversal of 55202435051421 is 12415053420255.

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

It is not a de Polignac number, because 55202435051421 - 2²⁹ = 55201898180509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55202435051421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55202435051411) 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, 1314343691680 + ... + 1314343691721.

It is an arithmetic number, because the mean of its divisors is an integer number (10514749533608).

Almost surely, 2^{55202435051421} is an apocalyptic number.

It is an amenable number.

55202435051421 is a deficient number, since it is larger than the sum of its proper divisors (28915561217443).

55202435051421 is a wasteful number, since it uses less digits than its factorization.

55202435051421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2628687383411.

The product of its (nonzero) digits is 240000, while the sum is 39.

Adding to 55202435051421 its reverse (12415053420255), we get a palindrome (67617488471676).

The spelling of 55202435051421 in words is "fifty-five trillion, two hundred two billion, four hundred thirty-five million, fifty-one thousand, four hundred twenty-one".