55704697 has 4 divisors (see below), whose sum is σ = 55727460. Its totient is φ = 55681936.

The previous prime is 55704659. The next prime is 55704707. The reversal of 55704697 is 79640755.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79640755 = 5 ⋅15928151.

It can be written as a sum of positive squares in 2 ways, for example, as 28047616 + 27657081 = 5296^2 + 5259^2 .

It is a cyclic number.

It is not a de Polignac number, because 55704697 - 2¹⁹ = 55180409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55704617) 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, 7198 + ... + 12775.

It is an arithmetic number, because the mean of its divisors is an integer number (13931865).

Almost surely, 2^55704697 is an apocalyptic number.

It is an amenable number.

55704697 is a deficient number, since it is larger than the sum of its proper divisors (22763).

55704697 is a wasteful number, since it uses less digits than its factorization.

55704697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22762.

The product of its (nonzero) digits is 264600, while the sum is 43.

The square root of 55704697 is about 7463.5579317106. The cubic root of 55704697 is about 381.9125577657.

The spelling of 55704697 in words is "fifty-five million, seven hundred four thousand, six hundred ninety-seven".