55463219 has 8 divisors (see below), whose sum is σ = 63641088. Its totient is φ = 47349000.

The previous prime is 55463179. The next prime is 55463257. The reversal of 55463219 is 91236455.

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

It is a cyclic number.

It is not a de Polignac number, because 55463219 - 2¹² = 55459123 is a prime.

It is a super-2 number, since 2×55463219² = 6152337323683922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55463269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14027 + ... + 17540.

It is an arithmetic number, because the mean of its divisors is an integer number (7955136).

Almost surely, 2^55463219 is an apocalyptic number.

55463219 is a deficient number, since it is larger than the sum of its proper divisors (8177869).

55463219 is a wasteful number, since it uses less digits than its factorization.

55463219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31825.

The product of its digits is 32400, while the sum is 35.

The square root of 55463219 is about 7447.3632246588. The cubic root of 55463219 is about 381.3598990171.

The spelling of 55463219 in words is "fifty-five million, four hundred sixty-three thousand, two hundred nineteen".