55501345 has 8 divisors (see below), whose sum is σ = 70519464. Its totient is φ = 41789184.

The previous prime is 55501343. The next prime is 55501349. The reversal of 55501345 is 54310555.

It can be written as a sum of positive squares in 4 ways, for example, as 2050624 + 53450721 = 1432^2 + 7311^2 .

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 55501345 - 2¹ = 55501343 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55501343) 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, 326394 + ... + 326563.

It is an arithmetic number, because the mean of its divisors is an integer number (8814933).

Almost surely, 2^55501345 is an apocalyptic number.

It is an amenable number.

55501345 is a deficient number, since it is larger than the sum of its proper divisors (15018119).

55501345 is a wasteful number, since it uses less digits than its factorization.

55501345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652979.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 55501345 is about 7449.9224828182. The cubic root of 55501345 is about 381.4472626036.

The spelling of 55501345 in words is "fifty-five million, five hundred one thousand, three hundred forty-five".