55970143 has 16 divisors (see below), whose sum is σ = 60192000. Its totient is φ = 51891840.

The previous prime is 55970129. The next prime is 55970179. The reversal of 55970143 is 34107955.

It is a cyclic number.

It is not a de Polignac number, because 55970143 - 2⁵ = 55970111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55970099 and 55970108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55970183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281158 + ... + 281356.

It is an arithmetic number, because the mean of its divisors is an integer number (3762000).

Almost surely, 2^55970143 is an apocalyptic number.

55970143 is a deficient number, since it is larger than the sum of its proper divisors (4221857).

55970143 is a wasteful number, since it uses less digits than its factorization.

55970143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 55970143 is about 7481.3196028508. The cubic root of 55970143 is about 382.5182311501.

The spelling of 55970143 in words is "fifty-five million, nine hundred seventy thousand, one hundred forty-three".