55224572 has 24 divisors (see below), whose sum is σ = 106893696. Its totient is φ = 24798528.

The previous prime is 55224571. The next prime is 55224623. The reversal of 55224572 is 27542255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55224571) 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, 12428 + ... + 16275.

It is an arithmetic number, because the mean of its divisors is an integer number (4453904).

Almost surely, 2^55224572 is an apocalyptic number.

55224572 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

55224572 is a deficient number, since it is larger than the sum of its proper divisors (51669124).

55224572 is a wasteful number, since it uses less digits than its factorization.

55224572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28757 (or 28755 counting only the distinct ones).

The product of its digits is 28000, while the sum is 32.

The square root of 55224572 is about 7431.3237044284. The cubic root of 55224572 is about 380.8121411607.

The spelling of 55224572 in words is "fifty-five million, two hundred twenty-four thousand, five hundred seventy-two".