55965901 has 4 divisors (see below), whose sum is σ = 56206332. Its totient is φ = 55725472.

The previous prime is 55965869. The next prime is 55965937. The reversal of 55965901 is 10956955.

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

It can be written as a sum of positive squares in 2 ways, for example, as 30261001 + 25704900 = 5501^2 + 5070^2 .

It is a cyclic number.

It is not a de Polignac number, because 55965901 - 2⁵ = 55965869 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 (55965991) 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, 119866 + ... + 120331.

It is an arithmetic number, because the mean of its divisors is an integer number (14051583).

Almost surely, 2^55965901 is an apocalyptic number.

It is an amenable number.

55965901 is a deficient number, since it is larger than the sum of its proper divisors (240431).

55965901 is a wasteful number, since it uses less digits than its factorization.

55965901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240430.

The product of its (nonzero) digits is 60750, while the sum is 40.

The square root of 55965901 is about 7481.0360913446. The cubic root of 55965901 is about 382.5085671682.

The spelling of 55965901 in words is "fifty-five million, nine hundred sixty-five thousand, nine hundred one".