55467217 has 4 divisors (see below), whose sum is σ = 59733940. Its totient is φ = 51200496.

The previous prime is 55467199. The next prime is 55467229. The reversal of 55467217 is 71276455.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71276455 = 5 ⋅14255291.

It can be written as a sum of positive squares in 2 ways, for example, as 16329681 + 39137536 = 4041^2 + 6256^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55467217 is a prime.

It is a super-2 number, since 2×55467217² = 6153224323450178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55467017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2133342 + ... + 2133367.

It is an arithmetic number, because the mean of its divisors is an integer number (14933485).

Almost surely, 2^55467217 is an apocalyptic number.

It is an amenable number.

55467217 is a deficient number, since it is larger than the sum of its proper divisors (4266723).

55467217 is a wasteful number, since it uses less digits than its factorization.

55467217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4266722.

The product of its digits is 58800, while the sum is 37.

The square root of 55467217 is about 7447.6316369702. The cubic root of 55467217 is about 381.3690620881.

The spelling of 55467217 in words is "fifty-five million, four hundred sixty-seven thousand, two hundred seventeen".