55140026 has 4 divisors (see below), whose sum is σ = 82710042. Its totient is φ = 27570012.

The previous prime is 55140023. The next prime is 55140031. The reversal of 55140026 is 62004155.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 43230625 + 11909401 = 6575^2 + 3451^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55139983 and 55140010.

It is not an unprimeable number, because it can be changed into a prime (55140023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13785005 + ... + 13785008.

Almost surely, 2^55140026 is an apocalyptic number.

55140026 is a deficient number, since it is larger than the sum of its proper divisors (27570016).

55140026 is a wasteful number, since it uses less digits than its factorization.

55140026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27570015.

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

The square root of 55140026 is about 7425.6330369875. The cubic root of 55140026 is about 380.6177072561.

The spelling of 55140026 in words is "fifty-five million, one hundred forty thousand, twenty-six".