220540552 has 8 divisors (see below), whose sum is σ = 413513550. Its totient is φ = 110270272.

The previous prime is 220540547. The next prime is 220540601. The reversal of 220540552 is 255045022.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 163175076 + 57365476 = 12774^2 + 7574^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13783777 + ... + 13783792.

Almost surely, 2^220540552 is an apocalyptic number.

It is an amenable number.

220540552 is a deficient number, since it is larger than the sum of its proper divisors (192972998).

220540552 is a wasteful number, since it uses less digits than its factorization.

220540552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27567575 (or 27567571 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 220540552 is about 14850.6077990094. The cubic root of 220540552 is about 604.1750950633.

Adding to 220540552 its reverse (255045022), we get a palindrome (475585574).

The spelling of 220540552 in words is "two hundred twenty million, five hundred forty thousand, five hundred fifty-two".