55335026222421 has 48 divisors (see below), whose sum is σ = 81502653376704. Its totient is φ = 33368737248000.

The previous prime is 55335026222419. The next prime is 55335026222491. The reversal of 55335026222421 is 12422262053355.

It is not a de Polignac number, because 55335026222421 - 2¹ = 55335026222419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55335026222491) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 299922561 + ... + 300107001.

It is an arithmetic number, because the mean of its divisors is an integer number (1697971945348).

Almost surely, 2^{55335026222421} is an apocalyptic number.

It is an amenable number.

55335026222421 is a deficient number, since it is larger than the sum of its proper divisors (26167627154283).

55335026222421 is a wasteful number, since it uses less digits than its factorization.

55335026222421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188594 (or 188583 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 42.

Adding to 55335026222421 its reverse (12422262053355), we get a palindrome (67757288275776).

The spelling of 55335026222421 in words is "fifty-five trillion, three hundred thirty-five billion, twenty-six million, two hundred twenty-two thousand, four hundred twenty-one".