55726705 has 8 divisors (see below), whose sum is σ = 66913704. Its totient is φ = 44553600.

The previous prime is 55726703. The next prime is 55726709. The reversal of 55726705 is 50762755.

It can be written as a sum of positive squares in 4 ways, for example, as 848241 + 54878464 = 921^2 + 7408^2 .

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

It is not a de Polignac number, because 55726705 - 2¹ = 55726703 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55726703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10395 + ... + 14815.

It is an arithmetic number, because the mean of its divisors is an integer number (8364213).

Almost surely, 2^55726705 is an apocalyptic number.

It is an amenable number.

55726705 is a deficient number, since it is larger than the sum of its proper divisors (11186999).

55726705 is a wasteful number, since it uses less digits than its factorization.

55726705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6947.

The product of its (nonzero) digits is 73500, while the sum is 37.

The square root of 55726705 is about 7465.0321499643. The cubic root of 55726705 is about 381.9628469116.

The spelling of 55726705 in words is "fifty-five million, seven hundred twenty-six thousand, seven hundred five".