55072726 has 8 divisors (see below), whose sum is σ = 82923984. Its totient is φ = 27431400.

The previous prime is 55072681. The next prime is 55072747. The reversal of 55072726 is 62727055.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 55072691 and 55072700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51825 + ... + 52876.

It is an arithmetic number, because the mean of its divisors is an integer number (10365498).

Almost surely, 2^55072726 is an apocalyptic number.

55072726 is a deficient number, since it is larger than the sum of its proper divisors (27851258).

55072726 is a wasteful number, since it uses less digits than its factorization.

55072726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104966.

The product of its (nonzero) digits is 29400, while the sum is 34.

The square root of 55072726 is about 7421.1000532266. The cubic root of 55072726 is about 380.4627925650.

The spelling of 55072726 in words is "fifty-five million, seventy-two thousand, seven hundred twenty-six".