54220985 has 32 divisors (see below), whose sum is σ = 80559360. Its totient is φ = 34115328.

The previous prime is 54220937. The next prime is 54220997. The reversal of 54220985 is 58902245.

54220985 = 400² + 401² + ... + 609².

It is a happy number.

It is not a de Polignac number, because 54220985 - 2⁶ = 54220921 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122174 + ... + 122616.

It is an arithmetic number, because the mean of its divisors is an integer number (2517480).

Almost surely, 2^54220985 is an apocalyptic number.

It is an amenable number.

54220985 is a deficient number, since it is larger than the sum of its proper divisors (26338375).

54220985 is a wasteful number, since it uses less digits than its factorization.

54220985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 54220985 is about 7363.4900013513. The cubic root of 54220985 is about 378.4912125893.

The spelling of 54220985 in words is "fifty-four million, two hundred twenty thousand, nine hundred eighty-five".