55670357 has 4 divisors (see below), whose sum is σ = 55877580. Its totient is φ = 55463136.

The previous prime is 55670353. The next prime is 55670371. The reversal of 55670357 is 75307655.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75307655 = 5 ⋅15061531.

It can be written as a sum of positive squares in 2 ways, for example, as 2540836 + 53129521 = 1594^2 + 7289^2 .

It is a cyclic number.

It is not a de Polignac number, because 55670357 - 2² = 55670353 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55670357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55670353) 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, 103208 + ... + 103745.

It is an arithmetic number, because the mean of its divisors is an integer number (13969395).

Almost surely, 2^55670357 is an apocalyptic number.

It is an amenable number.

55670357 is a deficient number, since it is larger than the sum of its proper divisors (207223).

55670357 is a wasteful number, since it uses less digits than its factorization.

55670357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207222.

The product of its (nonzero) digits is 110250, while the sum is 38.

The square root of 55670357 is about 7461.2570656693. The cubic root of 55670357 is about 381.8340630497.

The spelling of 55670357 in words is "fifty-five million, six hundred seventy thousand, three hundred fifty-seven".