55016398 has 16 divisors (see below), whose sum is σ = 83406960. Its totient is φ = 27216000.

The previous prime is 55016371. The next prime is 55016399. The reversal of 55016398 is 89361055.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55016399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136998 + ... + 137398.

It is an arithmetic number, because the mean of its divisors is an integer number (5212935).

Almost surely, 2^55016398 is an apocalyptic number.

55016398 is a deficient number, since it is larger than the sum of its proper divisors (28390562).

55016398 is a wasteful number, since it uses less digits than its factorization.

55016398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 55016398 is about 7417.3039576385. The cubic root of 55016398 is about 380.3330367537. Note that the first 3 decimals are identical.

The spelling of 55016398 in words is "fifty-five million, sixteen thousand, three hundred ninety-eight".