55970207 has 4 divisors (see below), whose sum is σ = 57335376. Its totient is φ = 54605040.

The previous prime is 55970191. The next prime is 55970209. The reversal of 55970207 is 70207955.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70207955 = 5 ⋅14041591.

It is a cyclic number.

It is not a de Polignac number, because 55970207 - 2⁴ = 55970191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55970209) 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, 682523 + ... + 682604.

It is an arithmetic number, because the mean of its divisors is an integer number (14333844).

Almost surely, 2^55970207 is an apocalyptic number.

55970207 is a deficient number, since it is larger than the sum of its proper divisors (1365169).

55970207 is a wasteful number, since it uses less digits than its factorization.

55970207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365168.

The product of its (nonzero) digits is 22050, while the sum is 35.

The square root of 55970207 is about 7481.3238801699. The cubic root of 55970207 is about 382.5183769490.

The spelling of 55970207 in words is "fifty-five million, nine hundred seventy thousand, two hundred seven".