61552222 has 16 divisors (see below), whose sum is σ = 94964400. Its totient is φ = 29909440.

The previous prime is 61552199. The next prime is 61552241. The reversal of 61552222 is 22225516.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7572 + ... + 13432.

It is an arithmetic number, because the mean of its divisors is an integer number (5935275).

Almost surely, 2^61552222 is an apocalyptic number.

61552222 is a deficient number, since it is larger than the sum of its proper divisors (33412178).

61552222 is a wasteful number, since it uses less digits than its factorization.

61552222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6011.

The product of its digits is 2400, while the sum is 25.

The square root of 61552222 is about 7845.5224172773. The cubic root of 61552222 is about 394.8340316470.

Adding to 61552222 its reverse (22225516), we get a palindrome (83777738).

The spelling of 61552222 in words is "sixty-one million, five hundred fifty-two thousand, two hundred twenty-two".