1220550524 has 48 divisors (see below), whose sum is σ = 2254777728. Its totient is φ = 577482048.

The previous prime is 1220550517. The next prime is 1220550577. The reversal of 1220550524 is 4250550221.

It is a junction number, because it is equal to n+sod(n) for n = 1220550493 and 1220550502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 822287 + ... + 823769.

It is an arithmetic number, because the mean of its divisors is an integer number (46974536).

Almost surely, 2^1220550524 is an apocalyptic number.

It is an amenable number.

1220550524 is a deficient number, since it is larger than the sum of its proper divisors (1034227204).

1220550524 is a wasteful number, since it uses less digits than its factorization.

1220550524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674 (or 1672 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 1220550524 is about 34936.3782324385. The cubic root of 1220550524 is about 1068.6904303676.

The spelling of 1220550524 in words is "one billion, two hundred twenty million, five hundred fifty thousand, five hundred twenty-four".