55420001154 has 192 divisors, whose sum is σ = 147022536960. Its totient is φ = 14735831040.

The previous prime is 55420001137. The next prime is 55420001177. The reversal of 55420001154 is 45110002455.

55420001154 is a `hidden beast` number, since 5 + 542 + 0 + 0 + 0 + 115 + 4 = 666.

It is a super-3 number, since 3×55420001154³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 58894324 + ... + 58895264.

It is an arithmetic number, because the mean of its divisors is an integer number (765742380).

Almost surely, 2^55420001154 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55420001154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73511268480).

55420001154 is an abundant number, since it is smaller than the sum of its proper divisors (91602535806).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55420001154 is a wasteful number, since it uses less digits than its factorization.

55420001154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385 (or 1382 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The spelling of 55420001154 in words is "fifty-five billion, four hundred twenty million, one thousand, one hundred fifty-four".