61323222 has 32 divisors (see below), whose sum is σ = 130677120. Its totient is φ = 19128960.

The previous prime is 61323217. The next prime is 61323247. The reversal of 61323222 is 22232316.

It is a super-2 number, since 2×61323222² = 7521075112922568, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

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, 6222 + ... + 12702.

It is an arithmetic number, because the mean of its divisors is an integer number (4083660).

Almost surely, 2^61323222 is an apocalyptic number.

61323222 is an abundant number, since it is smaller than the sum of its proper divisors (69353898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61323222 is a wasteful number, since it uses less digits than its factorization.

61323222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6588.

The product of its digits is 864, while the sum is 21.

The square root of 61323222 is about 7830.9145059820. The cubic root of 61323222 is about 394.3437739313.

Adding to 61323222 its reverse (22232316), we get a palindrome (83555538).

The spelling of 61323222 in words is "sixty-one million, three hundred twenty-three thousand, two hundred twenty-two".