55189546 has 4 divisors (see below), whose sum is σ = 82784322. Its totient is φ = 27594772.

The previous prime is 55189543. The next prime is 55189549. The reversal of 55189546 is 64598155.

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

It is an interprime number because it is at equal distance from previous prime (55189543) and next prime (55189549).

It can be written as a sum of positive squares in only one way, i.e., 48455521 + 6734025 = 6961^2 + 2595^2 .

It is a super-2 number, since 2×55189546² = 6091771975372232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55189543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13797385 + ... + 13797388.

Almost surely, 2^55189546 is an apocalyptic number.

55189546 is a deficient number, since it is larger than the sum of its proper divisors (27594776).

55189546 is a wasteful number, since it uses less digits than its factorization.

55189546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27594775.

The product of its digits is 216000, while the sum is 43.

The square root of 55189546 is about 7428.9666845396. The cubic root of 55189546 is about 380.7316145250.

The spelling of 55189546 in words is "fifty-five million, one hundred eighty-nine thousand, five hundred forty-six".