55306270 has 32 divisors (see below), whose sum is σ = 105893568. Its totient is φ = 20725248.

The previous prime is 55306249. The next prime is 55306271. The reversal of 55306270 is 7260355.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55306271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44092 + ... + 45328.

It is an arithmetic number, because the mean of its divisors is an integer number (3309174).

Almost surely, 2^55306270 is an apocalyptic number.

55306270 is a deficient number, since it is larger than the sum of its proper divisors (50587298).

55306270 is a wasteful number, since it uses less digits than its factorization.

55306270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1524.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 55306270 is about 7436.8185402092. The cubic root of 55306270 is about 380.9998369626. Note that the first 3 decimals are identical.

The spelling of 55306270 in words is "fifty-five million, three hundred six thousand, two hundred seventy".