55246730 has 64 divisors (see below), whose sum is σ = 125044992. Its totient is φ = 17072640.

The previous prime is 55246729. The next prime is 55246771. The reversal of 55246730 is 3764255.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120662 + ... + 121118.

It is an arithmetic number, because the mean of its divisors is an integer number (1953828).

Almost surely, 2^55246730 is an apocalyptic number.

55246730 is an abundant number, since it is smaller than the sum of its proper divisors (69798262).

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

55246730 is a wasteful number, since it uses less digits than its factorization.

55246730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 55246730 is about 7432.8144064008. The cubic root of 55246730 is about 380.8630659986.

The spelling of 55246730 in words is "fifty-five million, two hundred forty-six thousand, seven hundred thirty".