55303745 has 8 divisors (see below), whose sum is σ = 75845184. Its totient is φ = 37922544.

The previous prime is 55303739. The next prime is 55303747. The reversal of 55303745 is 54730355.

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

It is a cyclic number.

It is not a de Polignac number, because 55303745 - 2⁶ = 55303681 is a prime.

It is a super-2 number, since 2×55303745² = 6117008422050050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55303747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 790019 + ... + 790088.

It is an arithmetic number, because the mean of its divisors is an integer number (9480648).

Almost surely, 2^55303745 is an apocalyptic number.

It is an amenable number.

55303745 is a deficient number, since it is larger than the sum of its proper divisors (20541439).

55303745 is a wasteful number, since it uses less digits than its factorization.

55303745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580119.

The product of its (nonzero) digits is 31500, while the sum is 32.

The square root of 55303745 is about 7436.6487748179. The cubic root of 55303745 is about 380.9940387096.

The spelling of 55303745 in words is "fifty-five million, three hundred three thousand, seven hundred forty-five".