55646306 has 4 divisors (see below), whose sum is σ = 83469462. Its totient is φ = 27823152.

The previous prime is 55646251. The next prime is 55646309. The reversal of 55646306 is 60364655.

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

It can be written as a sum of positive squares in only one way, i.e., 51480625 + 4165681 = 7175^2 + 2041^2 .

It is a super-2 number, since 2×55646306² = 6193022742891272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55646309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13911575 + ... + 13911578.

Almost surely, 2^55646306 is an apocalyptic number.

55646306 is a deficient number, since it is larger than the sum of its proper divisors (27823156).

55646306 is a wasteful number, since it uses less digits than its factorization.

55646306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27823155.

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 55646306 is about 7459.6451658239. The cubic root of 55646306 is about 381.7790678100.

The spelling of 55646306 in words is "fifty-five million, six hundred forty-six thousand, three hundred six".