55235801 has 4 divisors (see below), whose sum is σ = 55375332. Its totient is φ = 55096272.

The previous prime is 55235767. The next prime is 55235809. The reversal of 55235801 is 10853255.

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 50055625 + 5180176 = 7075^2 + 2276^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55235801 is a prime.

It is a super-2 number, since 2×55235801² = 6101987424223202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55235809) 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, 69170 + ... + 69963.

It is an arithmetic number, because the mean of its divisors is an integer number (13843833).

Almost surely, 2^55235801 is an apocalyptic number.

It is an amenable number.

55235801 is a deficient number, since it is larger than the sum of its proper divisors (139531).

55235801 is a wasteful number, since it uses less digits than its factorization.

55235801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139530.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 55235801 is about 7432.0791841853. The cubic root of 55235801 is about 380.8379500207.

The spelling of 55235801 in words is "fifty-five million, two hundred thirty-five thousand, eight hundred one".