55235690 has 8 divisors (see below), whose sum is σ = 99424260. Its totient is φ = 22094272.

The previous prime is 55235689. The next prime is 55235711. The reversal of 55235690 is 9653255.

55235690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 48260809 + 6974881 = 6947^2 + 2641^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×55235690² = 6101962899552200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55235690.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2761775 + ... + 2761794.

Almost surely, 2^55235690 is an apocalyptic number.

55235690 is a deficient number, since it is larger than the sum of its proper divisors (44188570).

55235690 is a wasteful number, since it uses less digits than its factorization.

55235690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5523576.

The product of its (nonzero) digits is 40500, while the sum is 35.

The square root of 55235690 is about 7432.0717165539. The cubic root of 55235690 is about 380.8376949141.

The spelling of 55235690 in words is "fifty-five million, two hundred thirty-five thousand, six hundred ninety".