55401126 has 32 divisors (see below), whose sum is σ = 122086656. Its totient is φ = 16620000.

The previous prime is 55401121. The next prime is 55401149. The reversal of 55401126 is 62110455.

It is a junction number, because it is equal to n+sod(n) for n = 55401096 and 55401105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55401121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2511 + ... + 10821.

It is an arithmetic number, because the mean of its divisors is an integer number (3815208).

Almost surely, 2^55401126 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55401126, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61043328).

55401126 is an abundant number, since it is smaller than the sum of its proper divisors (66685530).

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

55401126 is a wasteful number, since it uses less digits than its factorization.

55401126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8428.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 55401126 is about 7443.1932663340. The cubic root of 55401126 is about 381.2175306577.

It can be divided in two parts, 5540 and 1126, that added together give a palindrome (6666).

The spelling of 55401126 in words is "fifty-five million, four hundred one thousand, one hundred twenty-six".