55400126 has 8 divisors (see below), whose sum is σ = 83148120. Its totient is φ = 27684088.

The previous prime is 55400117. The next prime is 55400129. The reversal of 55400126 is 62100455.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55400129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3041 + ... + 10956.

It is an arithmetic number, because the mean of its divisors is an integer number (10393515).

Almost surely, 2^55400126 is an apocalyptic number.

55400126 is a deficient number, since it is larger than the sum of its proper divisors (27747994).

55400126 is a wasteful number, since it uses less digits than its factorization.

55400126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15978.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 55400126 is about 7443.1260905617. The cubic root of 55400126 is about 381.2152369629.

The spelling of 55400126 in words is "fifty-five million, four hundred thousand, one hundred twenty-six".