55031322 has 8 divisors (see below), whose sum is σ = 110062656. Its totient is φ = 18343772.

The previous prime is 55031311. The next prime is 55031371. The reversal of 55031322 is 22313055.

It is a sphenic number, since it is the product of 3 distinct primes.

55031322 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4585938 + ... + 4585949.

It is an arithmetic number, because the mean of its divisors is an integer number (13757832).

Almost surely, 2^55031322 is an apocalyptic number.

55031322 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55031322 is a wasteful number, since it uses less digits than its factorization.

55031322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9171892.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 55031322 is about 7418.3099153379. The cubic root of 55031322 is about 380.3674239381.

Adding to 55031322 its reverse (22313055), we get a palindrome (77344377).

The spelling of 55031322 in words is "fifty-five million, thirty-one thousand, three hundred twenty-two".