55172466 has 24 divisors (see below), whose sum is σ = 125832720. Its totient is φ = 17422776.

The previous prime is 55172461. The next prime is 55172473. The reversal of 55172466 is 66427155.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 55172466.

It is not an unprimeable number, because it can be changed into a prime (55172461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80320 + ... + 81003.

It is an arithmetic number, because the mean of its divisors is an integer number (5243030).

Almost surely, 2^55172466 is an apocalyptic number.

55172466 is an abundant number, since it is smaller than the sum of its proper divisors (70660254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55172466 is a wasteful number, since it uses less digits than its factorization.

55172466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161350 (or 161347 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 55172466 is about 7427.8170413655. The cubic root of 55172466 is about 380.6923343388.

The spelling of 55172466 in words is "fifty-five million, one hundred seventy-two thousand, four hundred sixty-six".