55323242 has 32 divisors (see below), whose sum is σ = 93139200. Its totient is φ = 24470208.

The previous prime is 55323239. The next prime is 55323263. The reversal of 55323242 is 24232355.

It is a super-2 number, since 2×55323242² = 6121322210781128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

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, 180053 + ... + 180359.

It is an arithmetic number, because the mean of its divisors is an integer number (2910600).

Almost surely, 2^55323242 is an apocalyptic number.

55323242 is a deficient number, since it is larger than the sum of its proper divisors (37815958).

55323242 is a wasteful number, since it uses less digits than its factorization.

55323242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590.

The product of its digits is 7200, while the sum is 26.

The square root of 55323242 is about 7437.9595320222. The cubic root of 55323242 is about 381.0388058287.

Adding to 55323242 its reverse (24232355), we get a palindrome (79555597).

The spelling of 55323242 in words is "fifty-five million, three hundred twenty-three thousand, two hundred forty-two".