55326530 has 16 divisors (see below), whose sum is σ = 113814720. Its totient is φ = 18969072.

The previous prime is 55326529. The next prime is 55326559. The reversal of 55326530 is 3562355.

It is a happy number.

It is a super-2 number, since 2×55326530² = 6122049843681800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55326493 and 55326502.

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, 395120 + ... + 395259.

It is an arithmetic number, because the mean of its divisors is an integer number (7113420).

Almost surely, 2^55326530 is an apocalyptic number.

55326530 is an abundant number, since it is smaller than the sum of its proper divisors (58488190).

55326530 is a wasteful number, since it uses less digits than its factorization.

55326530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790393.

The product of its (nonzero) digits is 13500, while the sum is 29.

The square root of 55326530 is about 7438.1805570986. The cubic root of 55326530 is about 381.0463543787.

Adding to 55326530 its reverse (3562355), we get a palindrome (58888885).

The spelling of 55326530 in words is "fifty-five million, three hundred twenty-six thousand, five hundred thirty".