55735971 has 4 divisors (see below), whose sum is σ = 74314632. Its totient is φ = 37157312.

The previous prime is 55735963. The next prime is 55735973. The reversal of 55735971 is 17953755.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55735971 - 2³ = 55735963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55735973) 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, 9289326 + ... + 9289331.

It is an arithmetic number, because the mean of its divisors is an integer number (18578658).

Almost surely, 2^55735971 is an apocalyptic number.

55735971 is a deficient number, since it is larger than the sum of its proper divisors (18578661).

55735971 is a wasteful number, since it uses less digits than its factorization.

55735971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18578660.

The product of its digits is 165375, while the sum is 42.

The square root of 55735971 is about 7465.6527510995. The cubic root of 55735971 is about 381.9840161253.

The spelling of 55735971 in words is "fifty-five million, seven hundred thirty-five thousand, nine hundred seventy-one".