55329630 has 32 divisors (see below), whose sum is σ = 133056000. Its totient is φ = 14725152.

The previous prime is 55329607. The next prime is 55329641. The reversal of 55329630 is 3692355.

55329630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55329630² = 6122735911873800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55329591 and 55329600.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16431 + ... + 19509.

It is an arithmetic number, because the mean of its divisors is an integer number (4158000).

Almost surely, 2^55329630 is an apocalyptic number.

55329630 is an abundant number, since it is smaller than the sum of its proper divisors (77726370).

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

55329630 is a wasteful number, since it uses less digits than its factorization.

55329630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3688.

The product of its (nonzero) digits is 24300, while the sum is 33.

The square root of 55329630 is about 7438.3889384732. The cubic root of 55329630 is about 381.0534710467.

The spelling of 55329630 in words is "fifty-five million, three hundred twenty-nine thousand, six hundred thirty".